Finding the Fourth Proportional to 12,088.63, 16,687.79 and 7,555.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,088.63 : 16,687.79 = 7,555.47 : x
2. Step 2: Convert to fraction form
   12,088.63/16,687.79 = 7,555.47/x
3. Step 3: Cross multiply
   12,088.63x = 16,687.79 × 7,555.47
4. Step 4: Simplify right side
   12,088.63x = 126,084,096.71
5. Step 5: Solve for x
   x = 126,084,096.71/12,088.63
6. Step 6: Final answer
   x = 10,429.97