Finding the Fourth Proportional to 7,010.01, 10,512.05 and 3,111.75

Step by Step Solution

1. Step 1: Write the proportion equation
   7,010.01 : 10,512.05 = 3,111.75 : x
2. Step 2: Convert to fraction form
   7,010.01/10,512.05 = 3,111.75/x
3. Step 3: Cross multiply
   7,010.01x = 10,512.05 × 3,111.75
4. Step 4: Simplify right side
   7,010.01x = 32,710,856.03
5. Step 5: Solve for x
   x = 32,710,856.03/7,010.01
6. Step 6: Final answer
   x = 4,666.31