Finding the Fourth Proportional to 9,879,986.88, 14,817,906.72 and 2,786,616

Step by Step Solution

1. Step 1: Write the proportion equation
   9,879,986.88 : 14,817,906.72 = 2,786,616 : x
2. Step 2: Convert to fraction form
   9,879,986.88/14,817,906.72 = 2,786,616/x
3. Step 3: Cross multiply
   9,879,986.88x = 14,817,906.72 × 2,786,616
4. Step 4: Simplify right side
   9,879,986.88x = 41,291,815,952,459.52
5. Step 5: Solve for x
   x = 41,291,815,952,459.52/9,879,986.88
6. Step 6: Final answer
   x = 4,179,339.15