Finding the Fourth Proportional to 14,080.20, 19,430.63 and 7,619.83

Step by Step Solution

1. Step 1: Write the proportion equation
   14,080.20 : 19,430.63 = 7,619.83 : x
2. Step 2: Convert to fraction form
   14,080.20/19,430.63 = 7,619.83/x
3. Step 3: Cross multiply
   14,080.20x = 19,430.63 × 7,619.83
4. Step 4: Simplify right side
   14,080.20x = 148,058,060.72
5. Step 5: Solve for x
   x = 148,058,060.72/14,080.20
6. Step 6: Final answer
   x = 10,515.34