Finding the Fourth Proportional to 10,067,376.72, 15,072,923.76 and 5,439,783.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,067,376.72 : 15,072,923.76 = 5,439,783.12 : x
2. Step 2: Convert to fraction form
   10,067,376.72/15,072,923.76 = 5,439,783.12/x
3. Step 3: Cross multiply
   10,067,376.72x = 15,072,923.76 × 5,439,783.12
4. Step 4: Simplify right side
   10,067,376.72x = 81,993,436,238,694.94
5. Step 5: Solve for x
   x = 81,993,436,238,694.94/10,067,376.72
6. Step 6: Final answer
   x = 8,144,468.86