Finding the Fourth Proportional to 64,469.64, 88,968.24 and 35,789.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,469.64 : 88,968.24 = 35,789.72 : x
2. Step 2: Convert to fraction form
   64,469.64/88,968.24 = 35,789.72/x
3. Step 3: Cross multiply
   64,469.64x = 88,968.24 × 35,789.72
4. Step 4: Simplify right side
   64,469.64x = 3,184,147,953.65
5. Step 5: Solve for x
   x = 3,184,147,953.65/64,469.64
6. Step 6: Final answer
   x = 49,389.88