Finding the Fourth Proportional to 12,809,710.40, 17,677,379.64 and 7,008,515.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,809,710.40 : 17,677,379.64 = 7,008,515.52 : x
2. Step 2: Convert to fraction form
   12,809,710.40/17,677,379.64 = 7,008,515.52/x
3. Step 3: Cross multiply
   12,809,710.40x = 17,677,379.64 × 7,008,515.52
4. Step 4: Simplify right side
   12,809,710.40x = 123,892,189,559,872.02
5. Step 5: Solve for x
   x = 123,892,189,559,872.02/12,809,710.40
6. Step 6: Final answer
   x = 9,671,740.09