Finding the Fourth Proportional to 118,784.39, 163,922.49 and 65,071.33

Step by Step Solution

1. Step 1: Write the proportion equation
   118,784.39 : 163,922.49 = 65,071.33 : x
2. Step 2: Convert to fraction form
   118,784.39/163,922.49 = 65,071.33/x
3. Step 3: Cross multiply
   118,784.39x = 163,922.49 × 65,071.33
4. Step 4: Simplify right side
   118,784.39x = 10,666,654,441.21
5. Step 5: Solve for x
   x = 10,666,654,441.21/118,784.39
6. Step 6: Final answer
   x = 89,798.45