Finding the Fourth Proportional to 17,128.99, 23,638.17 and 10,055.53

Step by Step Solution

1. Step 1: Write the proportion equation
   17,128.99 : 23,638.17 = 10,055.53 : x
2. Step 2: Convert to fraction form
   17,128.99/23,638.17 = 10,055.53/x
3. Step 3: Cross multiply
   17,128.99x = 23,638.17 × 10,055.53
4. Step 4: Simplify right side
   17,128.99x = 237,694,327.58
5. Step 5: Solve for x
   x = 237,694,327.58/17,128.99
6. Step 6: Final answer
   x = 13,876.73