Finding the Fourth Proportional to 13,225.74, 18,248.67 and 7,633.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,225.74 : 18,248.67 = 7,633.50 : x
2. Step 2: Convert to fraction form
   13,225.74/18,248.67 = 7,633.50/x
3. Step 3: Cross multiply
   13,225.74x = 18,248.67 × 7,633.50
4. Step 4: Simplify right side
   13,225.74x = 139,301,222.45
5. Step 5: Solve for x
   x = 139,301,222.45/13,225.74
6. Step 6: Final answer
   x = 10,532.58