Finding the Fourth Proportional to 87,057.56, 120,146.72 and 48,816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,057.56 : 120,146.72 = 48,816.50 : x
2. Step 2: Convert to fraction form
   87,057.56/120,146.72 = 48,816.50/x
3. Step 3: Cross multiply
   87,057.56x = 120,146.72 × 48,816.50
4. Step 4: Simplify right side
   87,057.56x = 5,865,141,512.06
5. Step 5: Solve for x
   x = 5,865,141,512.06/87,057.56
6. Step 6: Final answer
   x = 67,370.85