Finding the Fourth Proportional to 118,889.20, 164,066.34 and 65,177.56

Step by Step Solution

1. Step 1: Write the proportion equation
   118,889.20 : 164,066.34 = 65,177.56 : x
2. Step 2: Convert to fraction form
   118,889.20/164,066.34 = 65,177.56/x
3. Step 3: Cross multiply
   118,889.20x = 164,066.34 × 65,177.56
4. Step 4: Simplify right side
   118,889.20x = 10,693,443,719.33
5. Step 5: Solve for x
   x = 10,693,443,719.33/118,889.20
6. Step 6: Final answer
   x = 89,944.62