Finding the Fourth Proportional to 76,925.55, 106,157.31 and 42,470.31

Step by Step Solution

1. Step 1: Write the proportion equation
   76,925.55 : 106,157.31 = 42,470.31 : x
2. Step 2: Convert to fraction form
   76,925.55/106,157.31 = 42,470.31/x
3. Step 3: Cross multiply
   76,925.55x = 106,157.31 × 42,470.31
4. Step 4: Simplify right side
   76,925.55x = 4,508,533,864.47
5. Step 5: Solve for x
   x = 4,508,533,864.47/76,925.55
6. Step 6: Final answer
   x = 58,609.06