Finding the Fourth Proportional to 105,093.96, 145,031.30 and 59,770.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,093.96 : 145,031.30 = 59,770.76 : x
2. Step 2: Convert to fraction form
   105,093.96/145,031.30 = 59,770.76/x
3. Step 3: Cross multiply
   105,093.96x = 145,031.30 × 59,770.76
4. Step 4: Simplify right side
   105,093.96x = 8,668,631,024.79
5. Step 5: Solve for x
   x = 8,668,631,024.79/105,093.96
6. Step 6: Final answer
   x = 82,484.58