Finding the Fourth Proportional to 314,456.20, 471,707.52 and 89,835.64

Step by Step Solution

1. Step 1: Write the proportion equation
   314,456.20 : 471,707.52 = 89,835.64 : x
2. Step 2: Convert to fraction form
   314,456.20/471,707.52 = 89,835.64/x
3. Step 3: Cross multiply
   314,456.20x = 471,707.52 × 89,835.64
4. Step 4: Simplify right side
   314,456.20x = 42,376,146,952.01
5. Step 5: Solve for x
   x = 42,376,146,952.01/314,456.20
6. Step 6: Final answer
   x = 134,760.09