Finding the Fourth Proportional to 5,389.74, 8,077.32 and 3,922.02

Step by Step Solution

1. Step 1: Write the proportion equation
   5,389.74 : 8,077.32 = 3,922.02 : x
2. Step 2: Convert to fraction form
   5,389.74/8,077.32 = 3,922.02/x
3. Step 3: Cross multiply
   5,389.74x = 8,077.32 × 3,922.02
4. Step 4: Simplify right side
   5,389.74x = 31,679,410.59
5. Step 5: Solve for x
   x = 31,679,410.59/5,389.74
6. Step 6: Final answer
   x = 5,877.73