Finding the Fourth Proportional to 81,596.13, 112,604.61 and 45,788.79

Step by Step Solution

1. Step 1: Write the proportion equation
   81,596.13 : 112,604.61 = 45,788.79 : x
2. Step 2: Convert to fraction form
   81,596.13/112,604.61 = 45,788.79/x
3. Step 3: Cross multiply
   81,596.13x = 112,604.61 × 45,788.79
4. Step 4: Simplify right side
   81,596.13x = 5,156,028,840.32
5. Step 5: Solve for x
   x = 5,156,028,840.32/81,596.13
6. Step 6: Final answer
   x = 63,189.62