Finding the Fourth Proportional to 10,938.99, 15,064.02 and 9,502.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,938.99 : 15,064.02 = 9,502.71 : x
2. Step 2: Convert to fraction form
   10,938.99/15,064.02 = 9,502.71/x
3. Step 3: Cross multiply
   10,938.99x = 15,064.02 × 9,502.71
4. Step 4: Simplify right side
   10,938.99x = 143,148,938.17
5. Step 5: Solve for x
   x = 143,148,938.17/10,938.99
6. Step 6: Final answer
   x = 13,086.12