Finding the Fourth Proportional to 14,138.38, 21,200.82 and 5,250.88

Step by Step Solution

1. Step 1: Write the proportion equation
   14,138.38 : 21,200.82 = 5,250.88 : x
2. Step 2: Convert to fraction form
   14,138.38/21,200.82 = 5,250.88/x
3. Step 3: Cross multiply
   14,138.38x = 21,200.82 × 5,250.88
4. Step 4: Simplify right side
   14,138.38x = 111,322,961.72
5. Step 5: Solve for x
   x = 111,322,961.72/14,138.38
6. Step 6: Final answer
   x = 7,873.81