Finding the Fourth Proportional to 9,018.26, 12,445.67 and 5,434.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018.26 : 12,445.67 = 5,434.34 : x
2. Step 2: Convert to fraction form
   9,018.26/12,445.67 = 5,434.34/x
3. Step 3: Cross multiply
   9,018.26x = 12,445.67 × 5,434.34
4. Step 4: Simplify right side
   9,018.26x = 67,634,047.01
5. Step 5: Solve for x
   x = 67,634,047.01/9,018.26
6. Step 6: Final answer
   x = 7,499.68