Finding the Fourth Proportional to 117,839.71, 162,618.49 and 64,124.71

Step by Step Solution

1. Step 1: Write the proportion equation
   117,839.71 : 162,618.49 = 64,124.71 : x
2. Step 2: Convert to fraction form
   117,839.71/162,618.49 = 64,124.71/x
3. Step 3: Cross multiply
   117,839.71x = 162,618.49 × 64,124.71
4. Step 4: Simplify right side
   117,839.71x = 10,427,862,698.80
5. Step 5: Solve for x
   x = 10,427,862,698.80/117,839.71
6. Step 6: Final answer
   x = 88,491.93