Finding the Fourth Proportional to 5,111.90, 7,050.90 and 4,940.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.90 : 7,050.90 = 4,940.48 : x
2. Step 2: Convert to fraction form
   5,111.90/7,050.90 = 4,940.48/x
3. Step 3: Cross multiply
   5,111.90x = 7,050.90 × 4,940.48
4. Step 4: Simplify right side
   5,111.90x = 34,834,830.43
5. Step 5: Solve for x
   x = 34,834,830.43/5,111.90
6. Step 6: Final answer
   x = 6,814.46