Finding the Fourth Proportional to 10,648.17, 14,680.15 and 7,457.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,648.17 : 14,680.15 = 7,457.17 : x
2. Step 2: Convert to fraction form
   10,648.17/14,680.15 = 7,457.17/x
3. Step 3: Cross multiply
   10,648.17x = 14,680.15 × 7,457.17
4. Step 4: Simplify right side
   10,648.17x = 109,472,374.18
5. Step 5: Solve for x
   x = 109,472,374.18/10,648.17
6. Step 6: Final answer
   x = 10,280.86