Finding the Fourth Proportional to 118,323.84, 163,293.54 and 64,613.86

Step by Step Solution

1. Step 1: Write the proportion equation
   118,323.84 : 163,293.54 = 64,613.86 : x
2. Step 2: Convert to fraction form
   118,323.84/163,293.54 = 64,613.86/x
3. Step 3: Cross multiply
   118,323.84x = 163,293.54 × 64,613.86
4. Step 4: Simplify right side
   118,323.84x = 10,551,025,932.46
5. Step 5: Solve for x
   x = 10,551,025,932.46/118,323.84
6. Step 6: Final answer
   x = 89,170.75