Finding the Fourth Proportional to 118,055.32, 162,911.52 and 64,339.18

Step by Step Solution

1. Step 1: Write the proportion equation
   118,055.32 : 162,911.52 = 64,339.18 : x
2. Step 2: Convert to fraction form
   118,055.32/162,911.52 = 64,339.18/x
3. Step 3: Cross multiply
   118,055.32x = 162,911.52 × 64,339.18
4. Step 4: Simplify right side
   118,055.32x = 10,481,593,609.35
5. Step 5: Solve for x
   x = 10,481,593,609.35/118,055.32
6. Step 6: Final answer
   x = 88,785.44