Finding the Fourth Proportional to 12,123,452.99, 18,188,591.20 and 5,300,625.35

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123,452.99 : 18,188,591.20 = 5,300,625.35 : x
2. Step 2: Convert to fraction form
   12,123,452.99/18,188,591.20 = 5,300,625.35/x
3. Step 3: Cross multiply
   12,123,452.99x = 18,188,591.20 × 5,300,625.35
4. Step 4: Simplify right side
   12,123,452.99x = 96,410,907,589,335.64
5. Step 5: Solve for x
   x = 96,410,907,589,335.64/12,123,452.99
6. Step 6: Final answer
   x = 7,952,429.70