Finding the Fourth Proportional to 5,620.35, 8,434.76 and 2,113.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,620.35 : 8,434.76 = 2,113.82 : x
2. Step 2: Convert to fraction form
   5,620.35/8,434.76 = 2,113.82/x
3. Step 3: Cross multiply
   5,620.35x = 8,434.76 × 2,113.82
4. Step 4: Simplify right side
   5,620.35x = 17,829,543.27
5. Step 5: Solve for x
   x = 17,829,543.27/5,620.35
6. Step 6: Final answer
   x = 3,172.32