Finding the Fourth Proportional to 118,042.91, 162,894.47 and 64,326.78

Step by Step Solution

1. Step 1: Write the proportion equation
   118,042.91 : 162,894.47 = 64,326.78 : x
2. Step 2: Convert to fraction form
   118,042.91/162,894.47 = 64,326.78/x
3. Step 3: Cross multiply
   118,042.91x = 162,894.47 × 64,326.78
4. Step 4: Simplify right side
   118,042.91x = 10,478,476,734.91
5. Step 5: Solve for x
   x = 10,478,476,734.91/118,042.91
6. Step 6: Final answer
   x = 88,768.37