Finding the Fourth Proportional to 118,013.73, 162,860.81 and 64,298.72

Step by Step Solution

1. Step 1: Write the proportion equation
   118,013.73 : 162,860.81 = 64,298.72 : x
2. Step 2: Convert to fraction form
   118,013.73/162,860.81 = 64,298.72/x
3. Step 3: Cross multiply
   118,013.73x = 162,860.81 × 64,298.72
4. Step 4: Simplify right side
   118,013.73x = 10,471,741,621.16
5. Step 5: Solve for x
   x = 10,471,741,621.16/118,013.73
6. Step 6: Final answer
   x = 88,733.25