Finding the Fourth Proportional to 17,430.56, 24,054.06 and 9,980

Step by Step Solution

1. Step 1: Write the proportion equation
   17,430.56 : 24,054.06 = 9,980 : x
2. Step 2: Convert to fraction form
   17,430.56/24,054.06 = 9,980/x
3. Step 3: Cross multiply
   17,430.56x = 24,054.06 × 9,980
4. Step 4: Simplify right side
   17,430.56x = 240,059,518.80
5. Step 5: Solve for x
   x = 240,059,518.80/17,430.56
6. Step 6: Final answer
   x = 13,772.34