Finding the Fourth Proportional to 90,074.94, 124,286.31 and 56,525.82

Step by Step Solution

1. Step 1: Write the proportion equation
   90,074.94 : 124,286.31 = 56,525.82 : x
2. Step 2: Convert to fraction form
   90,074.94/124,286.31 = 56,525.82/x
3. Step 3: Cross multiply
   90,074.94x = 124,286.31 × 56,525.82
4. Step 4: Simplify right side
   90,074.94x = 7,025,385,587.52
5. Step 5: Solve for x
   x = 7,025,385,587.52/90,074.94
6. Step 6: Final answer
   x = 77,994.90