Finding the Fourth Proportional to 14,390.38, 21,595.35 and 5,156.38

Step by Step Solution

1. Step 1: Write the proportion equation
   14,390.38 : 21,595.35 = 5,156.38 : x
2. Step 2: Convert to fraction form
   14,390.38/21,595.35 = 5,156.38/x
3. Step 3: Cross multiply
   14,390.38x = 21,595.35 × 5,156.38
4. Step 4: Simplify right side
   14,390.38x = 111,353,830.83
5. Step 5: Solve for x
   x = 111,353,830.83/14,390.38
6. Step 6: Final answer
   x = 7,738.07