Finding the Fourth Proportional to 5,105.56, 7,047.83 and 3,116.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,105.56 : 7,047.83 = 3,116.83 : x
2. Step 2: Convert to fraction form
   5,105.56/7,047.83 = 3,116.83/x
3. Step 3: Cross multiply
   5,105.56x = 7,047.83 × 3,116.83
4. Step 4: Simplify right side
   5,105.56x = 21,966,887.98
5. Step 5: Solve for x
   x = 21,966,887.98/5,105.56
6. Step 6: Final answer
   x = 4,302.54