Finding the Fourth Proportional to 17,139.16, 23,648.20 and 10,847.88

Step by Step Solution

1. Step 1: Write the proportion equation
   17,139.16 : 23,648.20 = 10,847.88 : x
2. Step 2: Convert to fraction form
   17,139.16/23,648.20 = 10,847.88/x
3. Step 3: Cross multiply
   17,139.16x = 23,648.20 × 10,847.88
4. Step 4: Simplify right side
   17,139.16x = 256,532,835.82
5. Step 5: Solve for x
   x = 256,532,835.82/17,139.16
6. Step 6: Final answer
   x = 14,967.64