Finding the Fourth Proportional to 12,897,766.91, 19,325,392.58 and 7,491,240.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,897,766.91 : 19,325,392.58 = 7,491,240.47 : x
2. Step 2: Convert to fraction form
   12,897,766.91/19,325,392.58 = 7,491,240.47/x
3. Step 3: Cross multiply
   12,897,766.91x = 19,325,392.58 × 7,491,240.47
4. Step 4: Simplify right side
   12,897,766.91x = 144,771,162,993,933.69
5. Step 5: Solve for x
   x = 144,771,162,993,933.69/12,897,766.91
6. Step 6: Final answer
   x = 11,224,513.83