Finding the Fourth Proportional to 5,977.57, 8,947.86 and 5,091.84

Step by Step Solution

1. Step 1: Write the proportion equation
   5,977.57 : 8,947.86 = 5,091.84 : x
2. Step 2: Convert to fraction form
   5,977.57/8,947.86 = 5,091.84/x
3. Step 3: Cross multiply
   5,977.57x = 8,947.86 × 5,091.84
4. Step 4: Simplify right side
   5,977.57x = 45,561,071.46
5. Step 5: Solve for x
   x = 45,561,071.46/5,977.57
6. Step 6: Final answer
   x = 7,622.01