Finding the Fourth Proportional to 64,502.65, 89,005.59 and 35,818.40

Step by Step Solution

1. Step 1: Write the proportion equation
   64,502.65 : 89,005.59 = 35,818.40 : x
2. Step 2: Convert to fraction form
   64,502.65/89,005.59 = 35,818.40/x
3. Step 3: Cross multiply
   64,502.65x = 89,005.59 × 35,818.40
4. Step 4: Simplify right side
   64,502.65x = 3,188,038,047.37
5. Step 5: Solve for x
   x = 3,188,038,047.37/64,502.65
6. Step 6: Final answer
   x = 49,424.91