Finding the Fourth Proportional to 17,938.63, 24,754.81 and 9,980.70

Step by Step Solution

1. Step 1: Write the proportion equation
   17,938.63 : 24,754.81 = 9,980.70 : x
2. Step 2: Convert to fraction form
   17,938.63/24,754.81 = 9,980.70/x
3. Step 3: Cross multiply
   17,938.63x = 24,754.81 × 9,980.70
4. Step 4: Simplify right side
   17,938.63x = 247,070,332.17
5. Step 5: Solve for x
   x = 247,070,332.17/17,938.63
6. Step 6: Final answer
   x = 13,773.09