Finding the Fourth Proportional to 12,381.88, 17,088.22 and 7,077.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,381.88 : 17,088.22 = 7,077.46 : x
2. Step 2: Convert to fraction form
   12,381.88/17,088.22 = 7,077.46/x
3. Step 3: Cross multiply
   12,381.88x = 17,088.22 × 7,077.46
4. Step 4: Simplify right side
   12,381.88x = 120,941,193.52
5. Step 5: Solve for x
   x = 120,941,193.52/12,381.88
6. Step 6: Final answer
   x = 9,767.60