Finding the Fourth Proportional to 85,411.98, 117,868.59 and 47,686.23

Step by Step Solution

1. Step 1: Write the proportion equation
   85,411.98 : 117,868.59 = 47,686.23 : x
2. Step 2: Convert to fraction form
   85,411.98/117,868.59 = 47,686.23/x
3. Step 3: Cross multiply
   85,411.98x = 117,868.59 × 47,686.23
4. Step 4: Simplify right side
   85,411.98x = 5,620,708,692.52
5. Step 5: Solve for x
   x = 5,620,708,692.52/85,411.98
6. Step 6: Final answer
   x = 65,807.03