Finding the Fourth Proportional to 12,562,414.20, 17,340,586.20 and 7,601,111.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,562,414.20 : 17,340,586.20 = 7,601,111.28 : x
2. Step 2: Convert to fraction form
   12,562,414.20/17,340,586.20 = 7,601,111.28/x
3. Step 3: Cross multiply
   12,562,414.20x = 17,340,586.20 × 7,601,111.28
4. Step 4: Simplify right side
   12,562,414.20x = 131,807,725,366,632.33
5. Step 5: Solve for x
   x = 131,807,725,366,632.33/12,562,414.20
6. Step 6: Final answer
   x = 10,492,228.90