Finding the Fourth Proportional to 118,032.42, 162,882.72 and 64,317.90

Step by Step Solution

1. Step 1: Write the proportion equation
   118,032.42 : 162,882.72 = 64,317.90 : x
2. Step 2: Convert to fraction form
   118,032.42/162,882.72 = 64,317.90/x
3. Step 3: Cross multiply
   118,032.42x = 162,882.72 × 64,317.90
4. Step 4: Simplify right side
   118,032.42x = 10,476,274,496.69
5. Step 5: Solve for x
   x = 10,476,274,496.69/118,032.42
6. Step 6: Final answer
   x = 88,757.60