Finding the Fourth Proportional to 14,078,399.82, 19,428,191.91 and 7,639,871.82

Step by Step Solution

1. Step 1: Write the proportion equation
   14,078,399.82 : 19,428,191.91 = 7,639,871.82 : x
2. Step 2: Convert to fraction form
   14,078,399.82/19,428,191.91 = 7,639,871.82/x
3. Step 3: Cross multiply
   14,078,399.82x = 19,428,191.91 × 7,639,871.82
4. Step 4: Simplify right side
   14,078,399.82x = 148,428,895,886,760.97
5. Step 5: Solve for x
   x = 148,428,895,886,760.97/14,078,399.82
6. Step 6: Final answer
   x = 10,543,023.20