Finding the Fourth Proportional to 17,139.47, 23,655.20 and 10,065.83

Step by Step Solution

1. Step 1: Write the proportion equation
   17,139.47 : 23,655.20 = 10,065.83 : x
2. Step 2: Convert to fraction form
   17,139.47/23,655.20 = 10,065.83/x
3. Step 3: Cross multiply
   17,139.47x = 23,655.20 × 10,065.83
4. Step 4: Simplify right side
   17,139.47x = 238,109,053.21
5. Step 5: Solve for x
   x = 238,109,053.21/17,139.47
6. Step 6: Final answer
   x = 13,892.44