Finding the Fourth Proportional to 47,580.31, 65,656.06 and 28,456.25

Step by Step Solution

1. Step 1: Write the proportion equation
   47,580.31 : 65,656.06 = 28,456.25 : x
2. Step 2: Convert to fraction form
   47,580.31/65,656.06 = 28,456.25/x
3. Step 3: Cross multiply
   47,580.31x = 65,656.06 × 28,456.25
4. Step 4: Simplify right side
   47,580.31x = 1,868,325,094.92
5. Step 5: Solve for x
   x = 1,868,325,094.92/47,580.31
6. Step 6: Final answer
   x = 39,266.77