Finding the Fourth Proportional to 90,092.94, 124,311.15 and 56,543.82

Step by Step Solution

1. Step 1: Write the proportion equation
   90,092.94 : 124,311.15 = 56,543.82 : x
2. Step 2: Convert to fraction form
   90,092.94/124,311.15 = 56,543.82/x
3. Step 3: Cross multiply
   90,092.94x = 124,311.15 × 56,543.82
4. Step 4: Simplify right side
   90,092.94x = 7,029,027,289.59
5. Step 5: Solve for x
   x = 7,029,027,289.59/90,092.94
6. Step 6: Final answer
   x = 78,019.73