Finding the Fourth Proportional to 138,061.98, 207,068.67 and 36,861.29

Step by Step Solution

1. Step 1: Write the proportion equation
   138,061.98 : 207,068.67 = 36,861.29 : x
2. Step 2: Convert to fraction form
   138,061.98/207,068.67 = 36,861.29/x
3. Step 3: Cross multiply
   138,061.98x = 207,068.67 × 36,861.29
4. Step 4: Simplify right side
   138,061.98x = 7,632,818,035.95
5. Step 5: Solve for x
   x = 7,632,818,035.95/138,061.98
6. Step 6: Final answer
   x = 55,285.45