Finding the Fourth Proportional to 12,454.89, 18,670.31 and 4,555.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,454.89 : 18,670.31 = 4,555.25 : x
2. Step 2: Convert to fraction form
   12,454.89/18,670.31 = 4,555.25/x
3. Step 3: Cross multiply
   12,454.89x = 18,670.31 × 4,555.25
4. Step 4: Simplify right side
   12,454.89x = 85,047,929.63
5. Step 5: Solve for x
   x = 85,047,929.63/12,454.89
6. Step 6: Final answer
   x = 6,828.48