Finding the Fourth Proportional to 12,942,098.69, 17,860,470.11 and 7,141,254.11

Step by Step Solution

1. Step 1: Write the proportion equation
   12,942,098.69 : 17,860,470.11 = 7,141,254.11 : x
2. Step 2: Convert to fraction form
   12,942,098.69/17,860,470.11 = 7,141,254.11/x
3. Step 3: Cross multiply
   12,942,098.69x = 17,860,470.11 × 7,141,254.11
4. Step 4: Simplify right side
   12,942,098.69x = 127,546,155,454,561.05
5. Step 5: Solve for x
   x = 127,546,155,454,561.05/12,942,098.69
6. Step 6: Final answer
   x = 9,855,136.99