Finding the Fourth Proportional to 12,381.43, 17,088.55 and 7,348.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,381.43 : 17,088.55 = 7,348.42 : x
2. Step 2: Convert to fraction form
   12,381.43/17,088.55 = 7,348.42/x
3. Step 3: Cross multiply
   12,381.43x = 17,088.55 × 7,348.42
4. Step 4: Simplify right side
   12,381.43x = 125,573,842.59
5. Step 5: Solve for x
   x = 125,573,842.59/12,381.43
6. Step 6: Final answer
   x = 10,142.11