Finding the Fourth Proportional to 118,947.39, 164,147.63 and 65,232.81

Step by Step Solution

1. Step 1: Write the proportion equation
   118,947.39 : 164,147.63 = 65,232.81 : x
2. Step 2: Convert to fraction form
   118,947.39/164,147.63 = 65,232.81/x
3. Step 3: Cross multiply
   118,947.39x = 164,147.63 × 65,232.81
4. Step 4: Simplify right side
   118,947.39x = 10,707,810,833.58
5. Step 5: Solve for x
   x = 10,707,810,833.58/118,947.39
6. Step 6: Final answer
   x = 90,021.40