Finding the Fourth Proportional to 215,061.04, 296,800.86 and 129,023.25

Step by Step Solution

1. Step 1: Write the proportion equation
   215,061.04 : 296,800.86 = 129,023.25 : x
2. Step 2: Convert to fraction form
   215,061.04/296,800.86 = 129,023.25/x
3. Step 3: Cross multiply
   215,061.04x = 296,800.86 × 129,023.25
4. Step 4: Simplify right side
   215,061.04x = 38,294,211,560.00
5. Step 5: Solve for x
   x = 38,294,211,560.00/215,061.04
6. Step 6: Final answer
   x = 178,062.06