Finding the Fourth Proportional to 107,046.72, 147,773.28 and 76,442.88

Step by Step Solution

1. Step 1: Write the proportion equation
   107,046.72 : 147,773.28 = 76,442.88 : x
2. Step 2: Convert to fraction form
   107,046.72/147,773.28 = 76,442.88/x
3. Step 3: Cross multiply
   107,046.72x = 147,773.28 × 76,442.88
4. Step 4: Simplify right side
   107,046.72x = 11,296,215,110.25
5. Step 5: Solve for x
   x = 11,296,215,110.25/107,046.72
6. Step 6: Final answer
   x = 105,526.03