Finding the Fourth Proportional to 284,821.92, 427,443.15 and 135,062.72

Step by Step Solution

1. Step 1: Write the proportion equation
   284,821.92 : 427,443.15 = 135,062.72 : x
2. Step 2: Convert to fraction form
   284,821.92/427,443.15 = 135,062.72/x
3. Step 3: Cross multiply
   284,821.92x = 427,443.15 × 135,062.72
4. Step 4: Simplify right side
   284,821.92x = 57,731,634,484.37
5. Step 5: Solve for x
   x = 57,731,634,484.37/284,821.92
6. Step 6: Final answer
   x = 202,693.79