Finding the Fourth Proportional to 13,228.74, 19,850.69 and 5,334.87

Step by Step Solution

1. Step 1: Write the proportion equation
   13,228.74 : 19,850.69 = 5,334.87 : x
2. Step 2: Convert to fraction form
   13,228.74/19,850.69 = 5,334.87/x
3. Step 3: Cross multiply
   13,228.74x = 19,850.69 × 5,334.87
4. Step 4: Simplify right side
   13,228.74x = 105,900,823.89
5. Step 5: Solve for x
   x = 105,900,823.89/13,228.74
6. Step 6: Final answer
   x = 8,005.36