Finding the Fourth Proportional to 25,428,744.72, 35,092,106.28 and 13,826,386.53

Step by Step Solution

1. Step 1: Write the proportion equation
   25,428,744.72 : 35,092,106.28 = 13,826,386.53 : x
2. Step 2: Convert to fraction form
   25,428,744.72/35,092,106.28 = 13,826,386.53/x
3. Step 3: Cross multiply
   25,428,744.72x = 35,092,106.28 × 13,826,386.53
4. Step 4: Simplify right side
   25,428,744.72x = 485,197,025,579,120.38
5. Step 5: Solve for x
   x = 485,197,025,579,120.38/25,428,744.72
6. Step 6: Final answer
   x = 19,080,651.87