Finding the Fourth Proportional to 14,073.33, 21,113.55 and 4,212.57

Step by Step Solution

1. Step 1: Write the proportion equation
   14,073.33 : 21,113.55 = 4,212.57 : x
2. Step 2: Convert to fraction form
   14,073.33/21,113.55 = 4,212.57/x
3. Step 3: Cross multiply
   14,073.33x = 21,113.55 × 4,212.57
4. Step 4: Simplify right side
   14,073.33x = 88,942,307.32
5. Step 5: Solve for x
   x = 88,942,307.32/14,073.33
6. Step 6: Final answer
   x = 6,319.92