Finding the Fourth Proportional to 118,019.88, 162,865.38 and 64,305.34

Step by Step Solution

1. Step 1: Write the proportion equation
   118,019.88 : 162,865.38 = 64,305.34 : x
2. Step 2: Convert to fraction form
   118,019.88/162,865.38 = 64,305.34/x
3. Step 3: Cross multiply
   118,019.88x = 162,865.38 × 64,305.34
4. Step 4: Simplify right side
   118,019.88x = 10,473,113,469.11
5. Step 5: Solve for x
   x = 10,473,113,469.11/118,019.88
6. Step 6: Final answer
   x = 88,740.25