Finding the Fourth Proportional to 118,510.29, 163,546.56 and 64,798.65

Step by Step Solution

1. Step 1: Write the proportion equation
   118,510.29 : 163,546.56 = 64,798.65 : x
2. Step 2: Convert to fraction form
   118,510.29/163,546.56 = 64,798.65/x
3. Step 3: Cross multiply
   118,510.29x = 163,546.56 × 64,798.65
4. Step 4: Simplify right side
   118,510.29x = 10,597,596,300.14
5. Step 5: Solve for x
   x = 10,597,596,300.14/118,510.29
6. Step 6: Final answer
   x = 89,423.43