Finding the Fourth Proportional to 17,153.31, 23,671.40 and 10,870.83

Step by Step Solution

1. Step 1: Write the proportion equation
   17,153.31 : 23,671.40 = 10,870.83 : x
2. Step 2: Convert to fraction form
   17,153.31/23,671.40 = 10,870.83/x
3. Step 3: Cross multiply
   17,153.31x = 23,671.40 × 10,870.83
4. Step 4: Simplify right side
   17,153.31x = 257,327,710.91
5. Step 5: Solve for x
   x = 257,327,710.91/17,153.31
6. Step 6: Final answer
   x = 15,001.64