Finding the Fourth Proportional to 118,035.63, 162,889.38 and 64,320.89

Step by Step Solution

1. Step 1: Write the proportion equation
   118,035.63 : 162,889.38 = 64,320.89 : x
2. Step 2: Convert to fraction form
   118,035.63/162,889.38 = 64,320.89/x
3. Step 3: Cross multiply
   118,035.63x = 162,889.38 × 64,320.89
4. Step 4: Simplify right side
   118,035.63x = 10,477,189,078.70
5. Step 5: Solve for x
   x = 10,477,189,078.70/118,035.63
6. Step 6: Final answer
   x = 88,762.94