Finding the Fourth Proportional to 47,205.30, 65,143.78 and 25,985

Step by Step Solution

1. Step 1: Write the proportion equation
   47,205.30 : 65,143.78 = 25,985 : x
2. Step 2: Convert to fraction form
   47,205.30/65,143.78 = 25,985/x
3. Step 3: Cross multiply
   47,205.30x = 65,143.78 × 25,985
4. Step 4: Simplify right side
   47,205.30x = 1,692,761,123.30
5. Step 5: Solve for x
   x = 1,692,761,123.30/47,205.30
6. Step 6: Final answer
   x = 35,859.56