Finding the Fourth Proportional to 14,312.50, 21,469.83 and 5,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,312.50 : 21,469.83 = 5,078.50 : x
2. Step 2: Convert to fraction form
   14,312.50/21,469.83 = 5,078.50/x
3. Step 3: Cross multiply
   14,312.50x = 21,469.83 × 5,078.50
4. Step 4: Simplify right side
   14,312.50x = 109,034,531.66
5. Step 5: Solve for x
   x = 109,034,531.66/14,312.50
6. Step 6: Final answer
   x = 7,618.13