Finding the Fourth Proportional to 81,596.43, 112,605.12 and 45,789.30

Step by Step Solution

1. Step 1: Write the proportion equation
   81,596.43 : 112,605.12 = 45,789.30 : x
2. Step 2: Convert to fraction form
   81,596.43/112,605.12 = 45,789.30/x
3. Step 3: Cross multiply
   81,596.43x = 112,605.12 × 45,789.30
4. Step 4: Simplify right side
   81,596.43x = 5,156,109,621.22
5. Step 5: Solve for x
   x = 5,156,109,621.22/81,596.43
6. Step 6: Final answer
   x = 63,190.38