Finding the Fourth Proportional to 3,922.50, 5,385.51 and 3,820.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,922.50 : 5,385.51 = 3,820.98 : x
2. Step 2: Convert to fraction form
   3,922.50/5,385.51 = 3,820.98/x
3. Step 3: Cross multiply
   3,922.50x = 5,385.51 × 3,820.98
4. Step 4: Simplify right side
   3,922.50x = 20,577,926.00
5. Step 5: Solve for x
   x = 20,577,926.00/3,922.50
6. Step 6: Final answer
   x = 5,246.13