Finding the Fourth Proportional to 117,865.15, 162,653.41 and 64,150.15

Step by Step Solution

1. Step 1: Write the proportion equation
   117,865.15 : 162,653.41 = 64,150.15 : x
2. Step 2: Convert to fraction form
   117,865.15/162,653.41 = 64,150.15/x
3. Step 3: Cross multiply
   117,865.15x = 162,653.41 × 64,150.15
4. Step 4: Simplify right side
   117,865.15x = 10,434,240,649.51
5. Step 5: Solve for x
   x = 10,434,240,649.51/117,865.15
6. Step 6: Final answer
   x = 88,526.94