Finding the Fourth Proportional to 118,609.52, 163,683.18 and 64,899.23

Step by Step Solution

1. Step 1: Write the proportion equation
   118,609.52 : 163,683.18 = 64,899.23 : x
2. Step 2: Convert to fraction form
   118,609.52/163,683.18 = 64,899.23/x
3. Step 3: Cross multiply
   118,609.52x = 163,683.18 × 64,899.23
4. Step 4: Simplify right side
   118,609.52x = 10,622,911,527.54
5. Step 5: Solve for x
   x = 10,622,911,527.54/118,609.52
6. Step 6: Final answer
   x = 89,562.05