Finding the Fourth Proportional to 76,488.78, 114,693.76 and 34,332.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,488.78 : 114,693.76 = 34,332.72 : x
2. Step 2: Convert to fraction form
   76,488.78/114,693.76 = 34,332.72/x
3. Step 3: Cross multiply
   76,488.78x = 114,693.76 × 34,332.72
4. Step 4: Simplify right side
   76,488.78x = 3,937,748,747.83
5. Step 5: Solve for x
   x = 3,937,748,747.83/76,488.78
6. Step 6: Final answer
   x = 51,481.39