Finding the Fourth Proportional to 78,749,103,583.80, 118,128,921,788.34 and 27,691,300,449.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,749,103,583.80 : 118,128,921,788.34 = 27,691,300,449.72 : x
2. Step 2: Convert to fraction form
   78,749,103,583.80/118,128,921,788.34 = 27,691,300,449.72/x
3. Step 3: Cross multiply
   78,749,103,583.80x = 118,128,921,788.34 × 27,691,300,449.72
4. Step 4: Simplify right side
   78,749,103,583.80x = 3,271,143,465,042,398,150,656
5. Step 5: Solve for x
   x = 3,271,143,465,042,398,150,656/78,749,103,583.80
6. Step 6: Final answer
   x = 41,538,802,553.62