Finding the Fourth Proportional to 12,387.17, 17,086.73 and 7,348.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,387.17 : 17,086.73 = 7,348.01 : x
2. Step 2: Convert to fraction form
   12,387.17/17,086.73 = 7,348.01/x
3. Step 3: Cross multiply
   12,387.17x = 17,086.73 × 7,348.01
4. Step 4: Simplify right side
   12,387.17x = 125,553,462.91
5. Step 5: Solve for x
   x = 125,553,462.91/12,387.17
6. Step 6: Final answer
   x = 10,135.77