Finding the Fourth Proportional to 5,434.60, 7,499.78 and 3,196.58

Step by Step Solution

1. Step 1: Write the proportion equation
   5,434.60 : 7,499.78 = 3,196.58 : x
2. Step 2: Convert to fraction form
   5,434.60/7,499.78 = 3,196.58/x
3. Step 3: Cross multiply
   5,434.60x = 7,499.78 × 3,196.58
4. Step 4: Simplify right side
   5,434.60x = 23,973,646.75
5. Step 5: Solve for x
   x = 23,973,646.75/5,434.60
6. Step 6: Final answer
   x = 4,411.30