Finding the Fourth Proportional to 118,078.56, 162,945.17 and 64,364.63

Step by Step Solution

1. Step 1: Write the proportion equation
   118,078.56 : 162,945.17 = 64,364.63 : x
2. Step 2: Convert to fraction form
   118,078.56/162,945.17 = 64,364.63/x
3. Step 3: Cross multiply
   118,078.56x = 162,945.17 × 64,364.63
4. Step 4: Simplify right side
   118,078.56x = 10,487,904,682.16
5. Step 5: Solve for x
   x = 10,487,904,682.16/118,078.56
6. Step 6: Final answer
   x = 88,821.41