Finding the Fourth Proportional to 7,111.91, 10,670.63 and 2,950.85

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111.91 : 10,670.63 = 2,950.85 : x
2. Step 2: Convert to fraction form
   7,111.91/10,670.63 = 2,950.85/x
3. Step 3: Cross multiply
   7,111.91x = 10,670.63 × 2,950.85
4. Step 4: Simplify right side
   7,111.91x = 31,487,360.43
5. Step 5: Solve for x
   x = 31,487,360.43/7,111.91
6. Step 6: Final answer
   x = 4,427.42