Finding the Fourth Proportional to 12,300,504.30, 18,469,718.19 and 10,406,304.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,300,504.30 : 18,469,718.19 = 10,406,304.72 : x
2. Step 2: Convert to fraction form
   12,300,504.30/18,469,718.19 = 10,406,304.72/x
3. Step 3: Cross multiply
   12,300,504.30x = 18,469,718.19 × 10,406,304.72
4. Step 4: Simplify right side
   12,300,504.30x = 192,201,515,577,666.88
5. Step 5: Solve for x
   x = 192,201,515,577,666.88/12,300,504.30
6. Step 6: Final answer
   x = 15,625,498.83