Finding the Fourth Proportional to 12,661,760.16, 17,470,928.34 and 7,080,107.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,661,760.16 : 17,470,928.34 = 7,080,107.40 : x
2. Step 2: Convert to fraction form
   12,661,760.16/17,470,928.34 = 7,080,107.40/x
3. Step 3: Cross multiply
   12,661,760.16x = 17,470,928.34 × 7,080,107.40
4. Step 4: Simplify right side
   12,661,760.16x = 123,696,049,024,903.72
5. Step 5: Solve for x
   x = 123,696,049,024,903.72/12,661,760.16
6. Step 6: Final answer
   x = 9,769,261.73