Finding the Fourth Proportional to 64,832.56, 89,485.56 and 42,227.86

Step by Step Solution

1. Step 1: Write the proportion equation
   64,832.56 : 89,485.56 = 42,227.86 : x
2. Step 2: Convert to fraction form
   64,832.56/89,485.56 = 42,227.86/x
3. Step 3: Cross multiply
   64,832.56x = 89,485.56 × 42,227.86
4. Step 4: Simplify right side
   64,832.56x = 3,778,783,699.70
5. Step 5: Solve for x
   x = 3,778,783,699.70/64,832.56
6. Step 6: Final answer
   x = 58,285.28