Finding the Fourth Proportional to 6,199.98, 8,557.50 and 3,840.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,199.98 : 8,557.50 = 3,840.72 : x
2. Step 2: Convert to fraction form
   6,199.98/8,557.50 = 3,840.72/x
3. Step 3: Cross multiply
   6,199.98x = 8,557.50 × 3,840.72
4. Step 4: Simplify right side
   6,199.98x = 32,866,961.40
5. Step 5: Solve for x
   x = 32,866,961.40/6,199.98
6. Step 6: Final answer
   x = 5,301.14