Finding the Fourth Proportional to 8,973.16, 12,374.28 and 5,989.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,973.16 : 12,374.28 = 5,989.12 : x
2. Step 2: Convert to fraction form
   8,973.16/12,374.28 = 5,989.12/x
3. Step 3: Cross multiply
   8,973.16x = 12,374.28 × 5,989.12
4. Step 4: Simplify right side
   8,973.16x = 74,111,047.83
5. Step 5: Solve for x
   x = 74,111,047.83/8,973.16
6. Step 6: Final answer
   x = 8,259.19