Finding the Fourth Proportional to 117,865, 162,649.38 and 64,148.68

Step by Step Solution

1. Step 1: Write the proportion equation
   117,865 : 162,649.38 = 64,148.68 : x
2. Step 2: Convert to fraction form
   117,865/162,649.38 = 64,148.68/x
3. Step 3: Cross multiply
   117,865x = 162,649.38 × 64,148.68
4. Step 4: Simplify right side
   117,865x = 10,433,743,029.82
5. Step 5: Solve for x
   x = 10,433,743,029.82/117,865
6. Step 6: Final answer
   x = 88,522.83