Finding the Fourth Proportional to 5,156.43, 7,110.50 and 3,060.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,156.43 : 7,110.50 = 3,060.15 : x
2. Step 2: Convert to fraction form
   5,156.43/7,110.50 = 3,060.15/x
3. Step 3: Cross multiply
   5,156.43x = 7,110.50 × 3,060.15
4. Step 4: Simplify right side
   5,156.43x = 21,759,181.27
5. Step 5: Solve for x
   x = 21,759,181.27/5,156.43
6. Step 6: Final answer
   x = 4,219.82