Finding the Fourth Proportional to 12,687,412, 17,500,662.48 and 7,527,120.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,687,412 : 17,500,662.48 = 7,527,120.16 : x
2. Step 2: Convert to fraction form
   12,687,412/17,500,662.48 = 7,527,120.16/x
3. Step 3: Cross multiply
   12,687,412x = 17,500,662.48 × 7,527,120.16
4. Step 4: Simplify right side
   12,687,412x = 131,729,589,366,563.61
5. Step 5: Solve for x
   x = 131,729,589,366,563.61/12,687,412
6. Step 6: Final answer
   x = 10,382,699.75