Finding the Fourth Proportional to 8,665.08, 11,947.82 and 7,402.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,665.08 : 11,947.82 = 7,402.29 : x
2. Step 2: Convert to fraction form
   8,665.08/11,947.82 = 7,402.29/x
3. Step 3: Cross multiply
   8,665.08x = 11,947.82 × 7,402.29
4. Step 4: Simplify right side
   8,665.08x = 88,441,191.50
5. Step 5: Solve for x
   x = 88,441,191.50/8,665.08
6. Step 6: Final answer
   x = 10,206.62