Finding the Fourth Proportional to 118,458.81, 163,475.76 and 64,747.29

Step by Step Solution

1. Step 1: Write the proportion equation
   118,458.81 : 163,475.76 = 64,747.29 : x
2. Step 2: Convert to fraction form
   118,458.81/163,475.76 = 64,747.29/x
3. Step 3: Cross multiply
   118,458.81x = 163,475.76 × 64,747.29
4. Step 4: Simplify right side
   118,458.81x = 10,584,612,440.69
5. Step 5: Solve for x
   x = 10,584,612,440.69/118,458.81
6. Step 6: Final answer
   x = 89,352.68