Finding the Fourth Proportional to 12,308,367.40, 18,465,963.90 and 5,123,285.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,308,367.40 : 18,465,963.90 = 5,123,285.80 : x
2. Step 2: Convert to fraction form
   12,308,367.40/18,465,963.90 = 5,123,285.80/x
3. Step 3: Cross multiply
   12,308,367.40x = 18,465,963.90 × 5,123,285.80
4. Step 4: Simplify right side
   12,308,367.40x = 94,606,410,632,182.61
5. Step 5: Solve for x
   x = 94,606,410,632,182.61/12,308,367.40
6. Step 6: Final answer
   x = 7,686,349.26