Finding the Fourth Proportional to 23,098.60, 31,876.10 and 12,488.23

Step by Step Solution

1. Step 1: Write the proportion equation
   23,098.60 : 31,876.10 = 12,488.23 : x
2. Step 2: Convert to fraction form
   23,098.60/31,876.10 = 12,488.23/x
3. Step 3: Cross multiply
   23,098.60x = 31,876.10 × 12,488.23
4. Step 4: Simplify right side
   23,098.60x = 398,076,068.30
5. Step 5: Solve for x
   x = 398,076,068.30/23,098.60
6. Step 6: Final answer
   x = 17,233.77