Finding the Fourth Proportional to 11,008.61, 15,191.72 and 5,972.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,008.61 : 15,191.72 = 5,972.69 : x
2. Step 2: Convert to fraction form
   11,008.61/15,191.72 = 5,972.69/x
3. Step 3: Cross multiply
   11,008.61x = 15,191.72 × 5,972.69
4. Step 4: Simplify right side
   11,008.61x = 90,735,404.26
5. Step 5: Solve for x
   x = 90,735,404.26/11,008.61
6. Step 6: Final answer
   x = 8,242.23