Finding the Fourth Proportional to 371,499.31, 557,242.99 and 146,861.83

Step by Step Solution

1. Step 1: Write the proportion equation
   371,499.31 : 557,242.99 = 146,861.83 : x
2. Step 2: Convert to fraction form
   371,499.31/557,242.99 = 146,861.83/x
3. Step 3: Cross multiply
   371,499.31x = 557,242.99 × 146,861.83
4. Step 4: Simplify right side
   371,499.31x = 81,837,723,505.81
5. Step 5: Solve for x
   x = 81,837,723,505.81/371,499.31
6. Step 6: Final answer
   x = 220,290.38