Finding the Fourth Proportional to 118,013.25, 162,860.15 and 64,298.25

Step by Step Solution

1. Step 1: Write the proportion equation
   118,013.25 : 162,860.15 = 64,298.25 : x
2. Step 2: Convert to fraction form
   118,013.25/162,860.15 = 64,298.25/x
3. Step 3: Cross multiply
   118,013.25x = 162,860.15 × 64,298.25
4. Step 4: Simplify right side
   118,013.25x = 10,471,622,639.74
5. Step 5: Solve for x
   x = 10,471,622,639.74/118,013.25
6. Step 6: Final answer
   x = 88,732.60