Finding the Fourth Proportional to 10,528.71, 14,531.90 and 7,179.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,528.71 : 14,531.90 = 7,179.53 : x
2. Step 2: Convert to fraction form
   10,528.71/14,531.90 = 7,179.53/x
3. Step 3: Cross multiply
   10,528.71x = 14,531.90 × 7,179.53
4. Step 4: Simplify right side
   10,528.71x = 104,332,103.45
5. Step 5: Solve for x
   x = 104,332,103.45/10,528.71
6. Step 6: Final answer
   x = 9,909.30