Finding the Fourth Proportional to 12,411.11, 17,126.88 and 7,102.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,411.11 : 17,126.88 = 7,102.17 : x
2. Step 2: Convert to fraction form
   12,411.11/17,126.88 = 7,102.17/x
3. Step 3: Cross multiply
   12,411.11x = 17,126.88 × 7,102.17
4. Step 4: Simplify right side
   12,411.11x = 121,638,013.33
5. Step 5: Solve for x
   x = 121,638,013.33/12,411.11
6. Step 6: Final answer
   x = 9,800.74