Finding the Fourth Proportional to 52,839.27, 79,258.25 and 12,858.48

Step by Step Solution

1. Step 1: Write the proportion equation
   52,839.27 : 79,258.25 = 12,858.48 : x
2. Step 2: Convert to fraction form
   52,839.27/79,258.25 = 12,858.48/x
3. Step 3: Cross multiply
   52,839.27x = 79,258.25 × 12,858.48
4. Step 4: Simplify right side
   52,839.27x = 1,019,140,558.17
5. Step 5: Solve for x
   x = 1,019,140,558.17/52,839.27
6. Step 6: Final answer
   x = 19,287.56