Finding the Fourth Proportional to 17,345.76, 23,937.15 and 9,387.99

Step by Step Solution

1. Step 1: Write the proportion equation
   17,345.76 : 23,937.15 = 9,387.99 : x
2. Step 2: Convert to fraction form
   17,345.76/23,937.15 = 9,387.99/x
3. Step 3: Cross multiply
   17,345.76x = 23,937.15 × 9,387.99
4. Step 4: Simplify right side
   17,345.76x = 224,721,724.83
5. Step 5: Solve for x
   x = 224,721,724.83/17,345.76
6. Step 6: Final answer
   x = 12,955.43