Finding the Fourth Proportional to 9,976.98, 14,967.39 and 3,820.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.98 : 14,967.39 = 3,820.50 : x
2. Step 2: Convert to fraction form
   9,976.98/14,967.39 = 3,820.50/x
3. Step 3: Cross multiply
   9,976.98x = 14,967.39 × 3,820.50
4. Step 4: Simplify right side
   9,976.98x = 57,182,913.50
5. Step 5: Solve for x
   x = 57,182,913.50/9,976.98
6. Step 6: Final answer
   x = 5,731.49