Finding the Fourth Proportional to 64,958.06, 89,642.40 and 35,150.06

Step by Step Solution

1. Step 1: Write the proportion equation
   64,958.06 : 89,642.40 = 35,150.06 : x
2. Step 2: Convert to fraction form
   64,958.06/89,642.40 = 35,150.06/x
3. Step 3: Cross multiply
   64,958.06x = 89,642.40 × 35,150.06
4. Step 4: Simplify right side
   64,958.06x = 3,150,935,830.84
5. Step 5: Solve for x
   x = 3,150,935,830.84/64,958.06
6. Step 6: Final answer
   x = 48,507.23