Finding the Fourth Proportional to 76,589.52, 105,685.48 and 42,592.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,589.52 : 105,685.48 = 42,592.50 : x
2. Step 2: Convert to fraction form
   76,589.52/105,685.48 = 42,592.50/x
3. Step 3: Cross multiply
   76,589.52x = 105,685.48 × 42,592.50
4. Step 4: Simplify right side
   76,589.52x = 4,501,408,806.90
5. Step 5: Solve for x
   x = 4,501,408,806.90/76,589.52
6. Step 6: Final answer
   x = 58,773.17