Finding the Fourth Proportional to 82,489.10, 123,221.88 and 59,819.83

Step by Step Solution

1. Step 1: Write the proportion equation
   82,489.10 : 123,221.88 = 59,819.83 : x
2. Step 2: Convert to fraction form
   82,489.10/123,221.88 = 59,819.83/x
3. Step 3: Cross multiply
   82,489.10x = 123,221.88 × 59,819.83
4. Step 4: Simplify right side
   82,489.10x = 7,371,111,913.88
5. Step 5: Solve for x
   x = 7,371,111,913.88/82,489.10
6. Step 6: Final answer
   x = 89,358.62