Finding the Fourth Proportional to 126,789.76, 174,972.56 and 69,431.52

Step by Step Solution

1. Step 1: Write the proportion equation
   126,789.76 : 174,972.56 = 69,431.52 : x
2. Step 2: Convert to fraction form
   126,789.76/174,972.56 = 69,431.52/x
3. Step 3: Cross multiply
   126,789.76x = 174,972.56 × 69,431.52
4. Step 4: Simplify right side
   126,789.76x = 12,148,610,799.09
5. Step 5: Solve for x
   x = 12,148,610,799.09/126,789.76
6. Step 6: Final answer
   x = 95,816.97