Finding the Fourth Proportional to 13,028,691.42, 19,543,178.61 and 3,930,870.51

Step by Step Solution

1. Step 1: Write the proportion equation
   13,028,691.42 : 19,543,178.61 = 3,930,870.51 : x
2. Step 2: Convert to fraction form
   13,028,691.42/19,543,178.61 = 3,930,870.51/x
3. Step 3: Cross multiply
   13,028,691.42x = 19,543,178.61 × 3,930,870.51
4. Step 4: Simplify right side
   13,028,691.42x = 76,821,704,469,711.78
5. Step 5: Solve for x
   x = 76,821,704,469,711.78/13,028,691.42
6. Step 6: Final answer
   x = 5,896,348.45