Finding the Fourth Proportional to 12,256,422.48, 18,359,783.76 and 5,681,890.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,256,422.48 : 18,359,783.76 = 5,681,890.56 : x
2. Step 2: Convert to fraction form
   12,256,422.48/18,359,783.76 = 5,681,890.56/x
3. Step 3: Cross multiply
   12,256,422.48x = 18,359,783.76 × 5,681,890.56
4. Step 4: Simplify right side
   12,256,422.48x = 104,318,282,029,585.31
5. Step 5: Solve for x
   x = 104,318,282,029,585.31/12,256,422.48
6. Step 6: Final answer
   x = 8,511,315.78