Finding the Fourth Proportional to 10,417.47, 14,361.13 and 7,428.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,417.47 : 14,361.13 = 7,428.10 : x
2. Step 2: Convert to fraction form
   10,417.47/14,361.13 = 7,428.10/x
3. Step 3: Cross multiply
   10,417.47x = 14,361.13 × 7,428.10
4. Step 4: Simplify right side
   10,417.47x = 106,675,909.75
5. Step 5: Solve for x
   x = 106,675,909.75/10,417.47
6. Step 6: Final answer
   x = 10,240.10