Finding the Fourth Proportional to 13,457.26, 18,570.89 and 7,488.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,457.26 : 18,570.89 = 7,488.83 : x
2. Step 2: Convert to fraction form
   13,457.26/18,570.89 = 7,488.83/x
3. Step 3: Cross multiply
   13,457.26x = 18,570.89 × 7,488.83
4. Step 4: Simplify right side
   13,457.26x = 139,074,177.50
5. Step 5: Solve for x
   x = 139,074,177.50/13,457.26
6. Step 6: Final answer
   x = 10,334.51