Finding the Fourth Proportional to 60,981.87, 83,968.05 and 53,385.69

Step by Step Solution

1. Step 1: Write the proportion equation
   60,981.87 : 83,968.05 = 53,385.69 : x
2. Step 2: Convert to fraction form
   60,981.87/83,968.05 = 53,385.69/x
3. Step 3: Cross multiply
   60,981.87x = 83,968.05 × 53,385.69
4. Step 4: Simplify right side
   60,981.87x = 4,482,692,287.20
5. Step 5: Solve for x
   x = 4,482,692,287.20/60,981.87
6. Step 6: Final answer
   x = 73,508.61