Finding the Fourth Proportional to 87,061.50, 120,147.30 and 49,338.18

Step by Step Solution

1. Step 1: Write the proportion equation
   87,061.50 : 120,147.30 = 49,338.18 : x
2. Step 2: Convert to fraction form
   87,061.50/120,147.30 = 49,338.18/x
3. Step 3: Cross multiply
   87,061.50x = 120,147.30 × 49,338.18
4. Step 4: Simplify right side
   87,061.50x = 5,927,849,113.91
5. Step 5: Solve for x
   x = 5,927,849,113.91/87,061.50
6. Step 6: Final answer
   x = 68,088.07