Finding the Fourth Proportional to 11,425.85, 17,131.86 and 7,472.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,425.85 : 17,131.86 = 7,472.34 : x
2. Step 2: Convert to fraction form
   11,425.85/17,131.86 = 7,472.34/x
3. Step 3: Cross multiply
   11,425.85x = 17,131.86 × 7,472.34
4. Step 4: Simplify right side
   11,425.85x = 128,015,082.75
5. Step 5: Solve for x
   x = 128,015,082.75/11,425.85
6. Step 6: Final answer
   x = 11,203.99