Finding the Fourth Proportional to 105,089.34, 145,026.48 and 59,773.85

Step by Step Solution

1. Step 1: Write the proportion equation
   105,089.34 : 145,026.48 = 59,773.85 : x
2. Step 2: Convert to fraction form
   105,089.34/145,026.48 = 59,773.85/x
3. Step 3: Cross multiply
   105,089.34x = 145,026.48 × 59,773.85
4. Step 4: Simplify right side
   105,089.34x = 8,668,790,336.42
5. Step 5: Solve for x
   x = 8,668,790,336.42/105,089.34
6. Step 6: Final answer
   x = 82,489.72