Finding the Fourth Proportional to 89,185.92, 123,099.81 and 55,174.62

Step by Step Solution

1. Step 1: Write the proportion equation
   89,185.92 : 123,099.81 = 55,174.62 : x
2. Step 2: Convert to fraction form
   89,185.92/123,099.81 = 55,174.62/x
3. Step 3: Cross multiply
   89,185.92x = 123,099.81 × 55,174.62
4. Step 4: Simplify right side
   89,185.92x = 6,791,985,238.82
5. Step 5: Solve for x
   x = 6,791,985,238.82/89,185.92
6. Step 6: Final answer
   x = 76,155.35