Finding the Fourth Proportional to 118,648.94, 163,733.34 and 64,932.87

Step by Step Solution

1. Step 1: Write the proportion equation
   118,648.94 : 163,733.34 = 64,932.87 : x
2. Step 2: Convert to fraction form
   118,648.94/163,733.34 = 64,932.87/x
3. Step 3: Cross multiply
   118,648.94x = 163,733.34 × 64,932.87
4. Step 4: Simplify right side
   118,648.94x = 10,631,675,680.89
5. Step 5: Solve for x
   x = 10,631,675,680.89/118,648.94
6. Step 6: Final answer
   x = 89,606.16