Finding the Fourth Proportional to 12,828,864.18, 17,697,120.57 and 7,932,521.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,828,864.18 : 17,697,120.57 = 7,932,521.10 : x
2. Step 2: Convert to fraction form
   12,828,864.18/17,697,120.57 = 7,932,521.10/x
3. Step 3: Cross multiply
   12,828,864.18x = 17,697,120.57 × 7,932,521.10
4. Step 4: Simplify right side
   12,828,864.18x = 140,382,782,330,769.02
5. Step 5: Solve for x
   x = 140,382,782,330,769.02/12,828,864.18
6. Step 6: Final answer
   x = 10,942,728.86