Finding the Fourth Proportional to 10,015,243.98, 13,821,036.69 and 5,431,565.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,015,243.98 : 13,821,036.69 = 5,431,565.36 : x
2. Step 2: Convert to fraction form
   10,015,243.98/13,821,036.69 = 5,431,565.36/x
3. Step 3: Cross multiply
   10,015,243.98x = 13,821,036.69 × 5,431,565.36
4. Step 4: Simplify right side
   10,015,243.98x = 75,069,864,124,693.06
5. Step 5: Solve for x
   x = 75,069,864,124,693.06/10,015,243.98
6. Step 6: Final answer
   x = 7,495,560.20