Finding the Fourth Proportional to 105,371.82, 145,576.85 and 88,349.67

Step by Step Solution

1. Step 1: Write the proportion equation
   105,371.82 : 145,576.85 = 88,349.67 : x
2. Step 2: Convert to fraction form
   105,371.82/145,576.85 = 88,349.67/x
3. Step 3: Cross multiply
   105,371.82x = 145,576.85 × 88,349.67
4. Step 4: Simplify right side
   105,371.82x = 12,861,666,215.39
5. Step 5: Solve for x
   x = 12,861,666,215.39/105,371.82
6. Step 6: Final answer
   x = 122,059.83