Finding the Fourth Proportional to 25,282,686.72, 34,884,040.06 and 15,359,371.05

Step by Step Solution

1. Step 1: Write the proportion equation
   25,282,686.72 : 34,884,040.06 = 15,359,371.05 : x
2. Step 2: Convert to fraction form
   25,282,686.72/34,884,040.06 = 15,359,371.05/x
3. Step 3: Cross multiply
   25,282,686.72x = 34,884,040.06 × 15,359,371.05
4. Step 4: Simplify right side
   25,282,686.72x = 535,796,914,806,591.88
5. Step 5: Solve for x
   x = 535,796,914,806,591.88/25,282,686.72
6. Step 6: Final answer
   x = 21,192,245.94