Finding the Fourth Proportional to 118,711.40, 163,825.88 and 64,996.84

Step by Step Solution

1. Step 1: Write the proportion equation
   118,711.40 : 163,825.88 = 64,996.84 : x
2. Step 2: Convert to fraction form
   118,711.40/163,825.88 = 64,996.84/x
3. Step 3: Cross multiply
   118,711.40x = 163,825.88 × 64,996.84
4. Step 4: Simplify right side
   118,711.40x = 10,648,164,510.22
5. Step 5: Solve for x
   x = 10,648,164,510.22/118,711.40
6. Step 6: Final answer
   x = 89,697.91