Finding the Fourth Proportional to 76,423.86, 105,468.22 and 42,432.35

Step by Step Solution

1. Step 1: Write the proportion equation
   76,423.86 : 105,468.22 = 42,432.35 : x
2. Step 2: Convert to fraction form
   76,423.86/105,468.22 = 42,432.35/x
3. Step 3: Cross multiply
   76,423.86x = 105,468.22 × 42,432.35
4. Step 4: Simplify right side
   76,423.86x = 4,475,264,424.92
5. Step 5: Solve for x
   x = 4,475,264,424.92/76,423.86
6. Step 6: Final answer
   x = 58,558.47