Finding the Fourth Proportional to 12,294.78, 18,443.34 and 4,897.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,294.78 : 18,443.34 = 4,897.56 : x
2. Step 2: Convert to fraction form
   12,294.78/18,443.34 = 4,897.56/x
3. Step 3: Cross multiply
   12,294.78x = 18,443.34 × 4,897.56
4. Step 4: Simplify right side
   12,294.78x = 90,327,364.25
5. Step 5: Solve for x
   x = 90,327,364.25/12,294.78
6. Step 6: Final answer
   x = 7,346.81