Finding the Fourth Proportional to 123,057.60, 184,659.30 and 89,693.70

Step by Step Solution

1. Step 1: Write the proportion equation
   123,057.60 : 184,659.30 = 89,693.70 : x
2. Step 2: Convert to fraction form
   123,057.60/184,659.30 = 89,693.70/x
3. Step 3: Cross multiply
   123,057.60x = 184,659.30 × 89,693.70
4. Step 4: Simplify right side
   123,057.60x = 16,562,775,856.41
5. Step 5: Solve for x
   x = 16,562,775,856.41/123,057.60
6. Step 6: Final answer
   x = 134,593.69