Finding the Fourth Proportional to 7,153.83, 9,870.89 and 3,967.00

Step by Step Solution

1. Step 1: Write the proportion equation
   7,153.83 : 9,870.89 = 3,967.00 : x
2. Step 2: Convert to fraction form
   7,153.83/9,870.89 = 3,967.00/x
3. Step 3: Cross multiply
   7,153.83x = 9,870.89 × 3,967.00
4. Step 4: Simplify right side
   7,153.83x = 39,157,776.12
5. Step 5: Solve for x
   x = 39,157,776.12/7,153.83
6. Step 6: Final answer
   x = 5,473.68