Finding the Fourth Proportional to 85,590, 118,114.61 and 47,864.25

Step by Step Solution

1. Step 1: Write the proportion equation
   85,590 : 118,114.61 = 47,864.25 : x
2. Step 2: Convert to fraction form
   85,590/118,114.61 = 47,864.25/x
3. Step 3: Cross multiply
   85,590x = 118,114.61 × 47,864.25
4. Step 4: Simplify right side
   85,590x = 5,653,466,982.37
5. Step 5: Solve for x
   x = 5,653,466,982.37/85,590
6. Step 6: Final answer
   x = 66,052.89