Finding the Fourth Proportional to 123,028.30, 184,443.90 and 113,186.80

Step by Step Solution

1. Step 1: Write the proportion equation
   123,028.30 : 184,443.90 = 113,186.80 : x
2. Step 2: Convert to fraction form
   123,028.30/184,443.90 = 113,186.80/x
3. Step 3: Cross multiply
   123,028.30x = 184,443.90 × 113,186.80
4. Step 4: Simplify right side
   123,028.30x = 20,876,614,820.52
5. Step 5: Solve for x
   x = 20,876,614,820.52/123,028.30
6. Step 6: Final answer
   x = 169,689.53