Finding the Fourth Proportional to 118,205.33, 163,123.12 and 64,490.38

Step by Step Solution

1. Step 1: Write the proportion equation
   118,205.33 : 163,123.12 = 64,490.38 : x
2. Step 2: Convert to fraction form
   118,205.33/163,123.12 = 64,490.38/x
3. Step 3: Cross multiply
   118,205.33x = 163,123.12 × 64,490.38
4. Step 4: Simplify right side
   118,205.33x = 10,519,871,426.55
5. Step 5: Solve for x
   x = 10,519,871,426.55/118,205.33
6. Step 6: Final answer
   x = 88,996.59