Finding the Fourth Proportional to 17,139,906.80, 25,691,784.65 and 5,622,366.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,139,906.80 : 25,691,784.65 = 5,622,366.55 : x
2. Step 2: Convert to fraction form
   17,139,906.80/25,691,784.65 = 5,622,366.55/x
3. Step 3: Cross multiply
   17,139,906.80x = 25,691,784.65 × 5,622,366.55
4. Step 4: Simplify right side
   17,139,906.80x = 144,448,630,469,392.69
5. Step 5: Solve for x
   x = 144,448,630,469,392.69/17,139,906.80
6. Step 6: Final answer
   x = 8,427,620.53