Finding the Fourth Proportional to 5,111.56, 7,054.16 and 2,988.46

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.56 : 7,054.16 = 2,988.46 : x
2. Step 2: Convert to fraction form
   5,111.56/7,054.16 = 2,988.46/x
3. Step 3: Cross multiply
   5,111.56x = 7,054.16 × 2,988.46
4. Step 4: Simplify right side
   5,111.56x = 21,081,060.05
5. Step 5: Solve for x
   x = 21,081,060.05/5,111.56
6. Step 6: Final answer
   x = 4,124.19