Finding the Fourth Proportional to 4,152.60, 6,196.37 and 4,128.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,152.60 : 6,196.37 = 4,128.30 : x
2. Step 2: Convert to fraction form
   4,152.60/6,196.37 = 4,128.30/x
3. Step 3: Cross multiply
   4,152.60x = 6,196.37 × 4,128.30
4. Step 4: Simplify right side
   4,152.60x = 25,580,453.63
5. Step 5: Solve for x
   x = 25,580,453.63/4,152.60
6. Step 6: Final answer
   x = 6,160.11