Finding the Fourth Proportional to 10,492.34, 14,471.87 and 7,129.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,492.34 : 14,471.87 = 7,129.28 : x
2. Step 2: Convert to fraction form
   10,492.34/14,471.87 = 7,129.28/x
3. Step 3: Cross multiply
   10,492.34x = 14,471.87 × 7,129.28
4. Step 4: Simplify right side
   10,492.34x = 103,174,013.89
5. Step 5: Solve for x
   x = 103,174,013.89/10,492.34
6. Step 6: Final answer
   x = 9,833.27