Finding the Fourth Proportional to 60,724.77, 90,483.50 and 54,100.05

Step by Step Solution

1. Step 1: Write the proportion equation
   60,724.77 : 90,483.50 = 54,100.05 : x
2. Step 2: Convert to fraction form
   60,724.77/90,483.50 = 54,100.05/x
3. Step 3: Cross multiply
   60,724.77x = 90,483.50 × 54,100.05
4. Step 4: Simplify right side
   60,724.77x = 4,895,161,603.67
5. Step 5: Solve for x
   x = 4,895,161,603.67/60,724.77
6. Step 6: Final answer
   x = 80,612.27