Finding the Fourth Proportional to 118,061.24, 162,919.74 and 64,345.10

Step by Step Solution

1. Step 1: Write the proportion equation
   118,061.24 : 162,919.74 = 64,345.10 : x
2. Step 2: Convert to fraction form
   118,061.24/162,919.74 = 64,345.10/x
3. Step 3: Cross multiply
   118,061.24x = 162,919.74 × 64,345.10
4. Step 4: Simplify right side
   118,061.24x = 10,483,086,147.68
5. Step 5: Solve for x
   x = 10,483,086,147.68/118,061.24
6. Step 6: Final answer
   x = 88,793.63