Finding the Fourth Proportional to 118,112.35, 162,995.78 and 64,398.26

Step by Step Solution

1. Step 1: Write the proportion equation
   118,112.35 : 162,995.78 = 64,398.26 : x
2. Step 2: Convert to fraction form
   118,112.35/162,995.78 = 64,398.26/x
3. Step 3: Cross multiply
   118,112.35x = 162,995.78 × 64,398.26
4. Step 4: Simplify right side
   118,112.35x = 10,496,644,619.34
5. Step 5: Solve for x
   x = 10,496,644,619.34/118,112.35
6. Step 6: Final answer
   x = 88,870.00