Finding the Fourth Proportional to 5,558.56, 7,670.72 and 3,074.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,558.56 : 7,670.72 = 3,074.56 : x
2. Step 2: Convert to fraction form
   5,558.56/7,670.72 = 3,074.56/x
3. Step 3: Cross multiply
   5,558.56x = 7,670.72 × 3,074.56
4. Step 4: Simplify right side
   5,558.56x = 23,584,088.88
5. Step 5: Solve for x
   x = 23,584,088.88/5,558.56
6. Step 6: Final answer
   x = 4,242.84