Finding the Fourth Proportional to 8,378,561.96, 12,568,827.18 and 2,987,978.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,378,561.96 : 12,568,827.18 = 2,987,978.72 : x
2. Step 2: Convert to fraction form
   8,378,561.96/12,568,827.18 = 2,987,978.72/x
3. Step 3: Cross multiply
   8,378,561.96x = 12,568,827.18 × 2,987,978.72
4. Step 4: Simplify right side
   8,378,561.96x = 37,555,388,149,197.61
5. Step 5: Solve for x
   x = 37,555,388,149,197.61/8,378,561.96
6. Step 6: Final answer
   x = 4,482,319.08