Finding the Fourth Proportional to 9,062.42, 12,505.20 and 5,284.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,062.42 : 12,505.20 = 5,284.58 : x
2. Step 2: Convert to fraction form
   9,062.42/12,505.20 = 5,284.58/x
3. Step 3: Cross multiply
   9,062.42x = 12,505.20 × 5,284.58
4. Step 4: Simplify right side
   9,062.42x = 66,084,729.82
5. Step 5: Solve for x
   x = 66,084,729.82/9,062.42
6. Step 6: Final answer
   x = 7,292.17