Finding the Fourth Proportional to 151,788.30, 227,640.88 and 57,011.15

Step by Step Solution

1. Step 1: Write the proportion equation
   151,788.30 : 227,640.88 = 57,011.15 : x
2. Step 2: Convert to fraction form
   151,788.30/227,640.88 = 57,011.15/x
3. Step 3: Cross multiply
   151,788.30x = 227,640.88 × 57,011.15
4. Step 4: Simplify right side
   151,788.30x = 12,978,068,996.18
5. Step 5: Solve for x
   x = 12,978,068,996.18/151,788.30
6. Step 6: Final answer
   x = 85,501.12