Finding the Fourth Proportional to 118,553.67, 163,601.78 and 64,838.52

Step by Step Solution

1. Step 1: Write the proportion equation
   118,553.67 : 163,601.78 = 64,838.52 : x
2. Step 2: Convert to fraction form
   118,553.67/163,601.78 = 64,838.52/x
3. Step 3: Cross multiply
   118,553.67x = 163,601.78 × 64,838.52
4. Step 4: Simplify right side
   118,553.67x = 10,607,696,960.37
5. Step 5: Solve for x
   x = 10,607,696,960.37/118,553.67
6. Step 6: Final answer
   x = 89,475.91