Finding the Fourth Proportional to 7,111.96, 10,670.70 and 2,950.91

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111.96 : 10,670.70 = 2,950.91 : x
2. Step 2: Convert to fraction form
   7,111.96/10,670.70 = 2,950.91/x
3. Step 3: Cross multiply
   7,111.96x = 10,670.70 × 2,950.91
4. Step 4: Simplify right side
   7,111.96x = 31,488,275.34
5. Step 5: Solve for x
   x = 31,488,275.34/7,111.96
6. Step 6: Final answer
   x = 4,427.51