Finding the Fourth Proportional to 87,012.54, 120,077.98 and 48,773.45

Step by Step Solution

1. Step 1: Write the proportion equation
   87,012.54 : 120,077.98 = 48,773.45 : x
2. Step 2: Convert to fraction form
   87,012.54/120,077.98 = 48,773.45/x
3. Step 3: Cross multiply
   87,012.54x = 120,077.98 × 48,773.45
4. Step 4: Simplify right side
   87,012.54x = 5,856,617,531.89
5. Step 5: Solve for x
   x = 5,856,617,531.89/87,012.54
6. Step 6: Final answer
   x = 67,307.74