Finding the Fourth Proportional to 146,008.83, 218,929.41 and 57,158.31

Step by Step Solution

1. Step 1: Write the proportion equation
   146,008.83 : 218,929.41 = 57,158.31 : x
2. Step 2: Convert to fraction form
   146,008.83/218,929.41 = 57,158.31/x
3. Step 3: Cross multiply
   146,008.83x = 218,929.41 × 57,158.31
4. Step 4: Simplify right side
   146,008.83x = 12,513,635,084.90
5. Step 5: Solve for x
   x = 12,513,635,084.90/146,008.83
6. Step 6: Final answer
   x = 85,704.65