Finding the Fourth Proportional to 11,257,647.12, 15,527,052.72 and 7,072,548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,257,647.12 : 15,527,052.72 = 7,072,548.72 : x
2. Step 2: Convert to fraction form
   11,257,647.12/15,527,052.72 = 7,072,548.72/x
3. Step 3: Cross multiply
   11,257,647.12x = 15,527,052.72 × 7,072,548.72
4. Step 4: Simplify right side
   11,257,647.12x = 109,815,836,840,208.52
5. Step 5: Solve for x
   x = 109,815,836,840,208.52/11,257,647.12
6. Step 6: Final answer
   x = 9,754,776.97