Finding the Fourth Proportional to 123,142.56, 184,715.36 and 34,390.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,142.56 : 184,715.36 = 34,390.72 : x
2. Step 2: Convert to fraction form
   123,142.56/184,715.36 = 34,390.72/x
3. Step 3: Cross multiply
   123,142.56x = 184,715.36 × 34,390.72
4. Step 4: Simplify right side
   123,142.56x = 6,352,494,225.46
5. Step 5: Solve for x
   x = 6,352,494,225.46/123,142.56
6. Step 6: Final answer
   x = 51,586.50