Finding the Fourth Proportional to 168,309,360,427.49, 232,267,042,613.83 and 91,147,799,152.68

Step by Step Solution

1. Step 1: Write the proportion equation
   168,309,360,427.49 : 232,267,042,613.83 = 91,147,799,152.68 : x
2. Step 2: Convert to fraction form
   168,309,360,427.49/232,267,042,613.83 = 91,147,799,152.68/x
3. Step 3: Cross multiply
   168,309,360,427.49x = 232,267,042,613.83 × 91,147,799,152.68
4. Step 4: Simplify right side
   168,309,360,427.49x = 21,170,629,749,951,181,094,912
5. Step 5: Solve for x
   x = 21,170,629,749,951,181,094,912/168,309,360,427.49
6. Step 6: Final answer
   x = 125,784,030,645.59