Finding the Fourth Proportional to 17,128.55, 23,639.10 and 10,054.82

Step by Step Solution

1. Step 1: Write the proportion equation
   17,128.55 : 23,639.10 = 10,054.82 : x
2. Step 2: Convert to fraction form
   17,128.55/23,639.10 = 10,054.82/x
3. Step 3: Cross multiply
   17,128.55x = 23,639.10 × 10,054.82
4. Step 4: Simplify right side
   17,128.55x = 237,686,895.46
5. Step 5: Solve for x
   x = 237,686,895.46/17,128.55
6. Step 6: Final answer
   x = 13,876.65