Finding the Fourth Proportional to 12,641,171.45, 17,438,389.83 and 7,678,292.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,641,171.45 : 17,438,389.83 = 7,678,292.13 : x
2. Step 2: Convert to fraction form
   12,641,171.45/17,438,389.83 = 7,678,292.13/x
3. Step 3: Cross multiply
   12,641,171.45x = 17,438,389.83 × 7,678,292.13
4. Step 4: Simplify right side
   12,641,171.45x = 133,897,051,391,561.02
5. Step 5: Solve for x
   x = 133,897,051,391,561.02/12,641,171.45
6. Step 6: Final answer
   x = 10,592,139.50