Finding the Fourth Proportional to 6,885,811.78, 9,504,978.18 and 5,915,046.22

Step by Step Solution

1. Step 1: Write the proportion equation
   6,885,811.78 : 9,504,978.18 = 5,915,046.22 : x
2. Step 2: Convert to fraction form
   6,885,811.78/9,504,978.18 = 5,915,046.22/x
3. Step 3: Cross multiply
   6,885,811.78x = 9,504,978.18 × 5,915,046.22
4. Step 4: Simplify right side
   6,885,811.78x = 56,222,385,254,791.48
5. Step 5: Solve for x
   x = 56,222,385,254,791.48/6,885,811.78
6. Step 6: Final answer
   x = 8,164,961.09