Finding the Fourth Proportional to 89,212.83, 123,104.82 and 51,499.23

Step by Step Solution

1. Step 1: Write the proportion equation
   89,212.83 : 123,104.82 = 51,499.23 : x
2. Step 2: Convert to fraction form
   89,212.83/123,104.82 = 51,499.23/x
3. Step 3: Cross multiply
   89,212.83x = 123,104.82 × 51,499.23
4. Step 4: Simplify right side
   89,212.83x = 6,339,803,439.29
5. Step 5: Solve for x
   x = 6,339,803,439.29/89,212.83
6. Step 6: Final answer
   x = 71,063.81