Finding the Fourth Proportional to 6,721.27, 10,070.61 and 3,385.08

Step by Step Solution

1. Step 1: Write the proportion equation
   6,721.27 : 10,070.61 = 3,385.08 : x
2. Step 2: Convert to fraction form
   6,721.27/10,070.61 = 3,385.08/x
3. Step 3: Cross multiply
   6,721.27x = 10,070.61 × 3,385.08
4. Step 4: Simplify right side
   6,721.27x = 34,089,820.50
5. Step 5: Solve for x
   x = 34,089,820.50/6,721.27
6. Step 6: Final answer
   x = 5,071.93