Finding the Fourth Proportional to 17,312.18, 23,890.96 and 10,140.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,312.18 : 23,890.96 = 10,140.50 : x
2. Step 2: Convert to fraction form
   17,312.18/23,890.96 = 10,140.50/x
3. Step 3: Cross multiply
   17,312.18x = 23,890.96 × 10,140.50
4. Step 4: Simplify right side
   17,312.18x = 242,266,279.88
5. Step 5: Solve for x
   x = 242,266,279.88/17,312.18
6. Step 6: Final answer
   x = 13,993.98