Finding the Fourth Proportional to 13,459.33, 18,573.59 and 7,490.64

Step by Step Solution

1. Step 1: Write the proportion equation
   13,459.33 : 18,573.59 = 7,490.64 : x
2. Step 2: Convert to fraction form
   13,459.33/18,573.59 = 7,490.64/x
3. Step 3: Cross multiply
   13,459.33x = 18,573.59 × 7,490.64
4. Step 4: Simplify right side
   13,459.33x = 139,128,076.20
5. Step 5: Solve for x
   x = 139,128,076.20/13,459.33
6. Step 6: Final answer
   x = 10,336.92