Finding the Fourth Proportional to 12,699,760.80, 17,493,623.88 and 10,245,499.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,699,760.80 : 17,493,623.88 = 10,245,499.80 : x
2. Step 2: Convert to fraction form
   12,699,760.80/17,493,623.88 = 10,245,499.80/x
3. Step 3: Cross multiply
   12,699,760.80x = 17,493,623.88 × 10,245,499.80
4. Step 4: Simplify right side
   12,699,760.80x = 179,230,919,963,815.22
5. Step 5: Solve for x
   x = 179,230,919,963,815.22/12,699,760.80
6. Step 6: Final answer
   x = 14,112,936.68