Finding the Fourth Proportional to 10,661.57, 14,715.60 and 7,264.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,661.57 : 14,715.60 = 7,264.20 : x
2. Step 2: Convert to fraction form
   10,661.57/14,715.60 = 7,264.20/x
3. Step 3: Cross multiply
   10,661.57x = 14,715.60 × 7,264.20
4. Step 4: Simplify right side
   10,661.57x = 106,897,061.52
5. Step 5: Solve for x
   x = 106,897,061.52/10,661.57
6. Step 6: Final answer
   x = 10,026.39