Finding the Fourth Proportional to 118,015.25, 162,862.91 and 64,300.25

Step by Step Solution

1. Step 1: Write the proportion equation
   118,015.25 : 162,862.91 = 64,300.25 : x
2. Step 2: Convert to fraction form
   118,015.25/162,862.91 = 64,300.25/x
3. Step 3: Cross multiply
   118,015.25x = 162,862.91 × 64,300.25
4. Step 4: Simplify right side
   118,015.25x = 10,472,125,828.73
5. Step 5: Solve for x
   x = 10,472,125,828.73/118,015.25
6. Step 6: Final answer
   x = 88,735.36