Finding the Fourth Proportional to 10,429.59, 15,633.45 and 8,767.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,429.59 : 15,633.45 = 8,767.47 : x
2. Step 2: Convert to fraction form
   10,429.59/15,633.45 = 8,767.47/x
3. Step 3: Cross multiply
   10,429.59x = 15,633.45 × 8,767.47
4. Step 4: Simplify right side
   10,429.59x = 137,065,803.87
5. Step 5: Solve for x
   x = 137,065,803.87/10,429.59
6. Step 6: Final answer
   x = 13,142.01