Finding the Fourth Proportional to 85,922.91, 118,580.76 and 47,686.05

Step by Step Solution

1. Step 1: Write the proportion equation
   85,922.91 : 118,580.76 = 47,686.05 : x
2. Step 2: Convert to fraction form
   85,922.91/118,580.76 = 47,686.05/x
3. Step 3: Cross multiply
   85,922.91x = 118,580.76 × 47,686.05
4. Step 4: Simplify right side
   85,922.91x = 5,654,648,050.40
5. Step 5: Solve for x
   x = 5,654,648,050.40/85,922.91
6. Step 6: Final answer
   x = 65,810.71