Finding the Fourth Proportional to 76,124.88, 105,052.55 and 42,135.73

Step by Step Solution

1. Step 1: Write the proportion equation
   76,124.88 : 105,052.55 = 42,135.73 : x
2. Step 2: Convert to fraction form
   76,124.88/105,052.55 = 42,135.73/x
3. Step 3: Cross multiply
   76,124.88x = 105,052.55 × 42,135.73
4. Step 4: Simplify right side
   76,124.88x = 4,426,465,882.61
5. Step 5: Solve for x
   x = 4,426,465,882.61/76,124.88
6. Step 6: Final answer
   x = 58,147.43