Finding the Fourth Proportional to 118,079.69, 162,946.72 and 64,365.75

Step by Step Solution

1. Step 1: Write the proportion equation
   118,079.69 : 162,946.72 = 64,365.75 : x
2. Step 2: Convert to fraction form
   118,079.69/162,946.72 = 64,365.75/x
3. Step 3: Cross multiply
   118,079.69x = 162,946.72 × 64,365.75
4. Step 4: Simplify right side
   118,079.69x = 10,488,187,923.30
5. Step 5: Solve for x
   x = 10,488,187,923.30/118,079.69
6. Step 6: Final answer
   x = 88,822.97