Finding the Fourth Proportional to 118,909.71, 164,095.35 and 65,193.59

Step by Step Solution

1. Step 1: Write the proportion equation
   118,909.71 : 164,095.35 = 65,193.59 : x
2. Step 2: Convert to fraction form
   118,909.71/164,095.35 = 65,193.59/x
3. Step 3: Cross multiply
   118,909.71x = 164,095.35 × 65,193.59
4. Step 4: Simplify right side
   118,909.71x = 10,697,964,148.33
5. Step 5: Solve for x
   x = 10,697,964,148.33/118,909.71
6. Step 6: Final answer
   x = 89,967.12