Finding the Fourth Proportional to 81,192.42, 112,045.50 and 47,658.42

Step by Step Solution

1. Step 1: Write the proportion equation
   81,192.42 : 112,045.50 = 47,658.42 : x
2. Step 2: Convert to fraction form
   81,192.42/112,045.50 = 47,658.42/x
3. Step 3: Cross multiply
   81,192.42x = 112,045.50 × 47,658.42
4. Step 4: Simplify right side
   81,192.42x = 5,339,911,498.11
5. Step 5: Solve for x
   x = 5,339,911,498.11/81,192.42
6. Step 6: Final answer
   x = 65,768.60