Finding the Fourth Proportional to 102,210.52, 141,069.98 and 57,498.52

Step by Step Solution

1. Step 1: Write the proportion equation
   102,210.52 : 141,069.98 = 57,498.52 : x
2. Step 2: Convert to fraction form
   102,210.52/141,069.98 = 57,498.52/x
3. Step 3: Cross multiply
   102,210.52x = 141,069.98 × 57,498.52
4. Step 4: Simplify right side
   102,210.52x = 8,111,315,066.43
5. Step 5: Solve for x
   x = 8,111,315,066.43/102,210.52
6. Step 6: Final answer
   x = 79,358.91