Finding the Fourth Proportional to 85,845.72, 118,479.24 and 47,613.72

Step by Step Solution

1. Step 1: Write the proportion equation
   85,845.72 : 118,479.24 = 47,613.72 : x
2. Step 2: Convert to fraction form
   85,845.72/118,479.24 = 47,613.72/x
3. Step 3: Cross multiply
   85,845.72x = 118,479.24 × 47,613.72
4. Step 4: Simplify right side
   85,845.72x = 5,641,237,359.17
5. Step 5: Solve for x
   x = 5,641,237,359.17/85,845.72
6. Step 6: Final answer
   x = 65,713.67