Finding the Fourth Proportional to 11,666.40, 17,495.04 and 5,088.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,666.40 : 17,495.04 = 5,088.09 : x
2. Step 2: Convert to fraction form
   11,666.40/17,495.04 = 5,088.09/x
3. Step 3: Cross multiply
   11,666.40x = 17,495.04 × 5,088.09
4. Step 4: Simplify right side
   11,666.40x = 89,016,338.07
5. Step 5: Solve for x
   x = 89,016,338.07/11,666.40
6. Step 6: Final answer
   x = 7,630.15