Finding the Fourth Proportional to 9,288,978.27, 13,929,917.29 and 3,055,630.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,288,978.27 : 13,929,917.29 = 3,055,630.69 : x
2. Step 2: Convert to fraction form
   9,288,978.27/13,929,917.29 = 3,055,630.69/x
3. Step 3: Cross multiply
   9,288,978.27x = 13,929,917.29 × 3,055,630.69
4. Step 4: Simplify right side
   9,288,978.27x = 42,564,682,780,485.62
5. Step 5: Solve for x
   x = 42,564,682,780,485.62/9,288,978.27
6. Step 6: Final answer
   x = 4,582,278.22