Finding the Fourth Proportional to 64,990.56, 89,687.28 and 35,182.56

Step by Step Solution

1. Step 1: Write the proportion equation
   64,990.56 : 89,687.28 = 35,182.56 : x
2. Step 2: Convert to fraction form
   64,990.56/89,687.28 = 35,182.56/x
3. Step 3: Cross multiply
   64,990.56x = 89,687.28 × 35,182.56
4. Step 4: Simplify right side
   64,990.56x = 3,155,428,109.84
5. Step 5: Solve for x
   x = 3,155,428,109.84/64,990.56
6. Step 6: Final answer
   x = 48,552.10