Finding the Fourth Proportional to 12,901.16, 17,802.50 and 8,715.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,901.16 : 17,802.50 = 8,715.08 : x
2. Step 2: Convert to fraction form
   12,901.16/17,802.50 = 8,715.08/x
3. Step 3: Cross multiply
   12,901.16x = 17,802.50 × 8,715.08
4. Step 4: Simplify right side
   12,901.16x = 155,150,211.70
5. Step 5: Solve for x
   x = 155,150,211.70/12,901.16
6. Step 6: Final answer
   x = 12,026.07