Finding the Fourth Proportional to 118,824.60, 163,978.20 and 65,108.46

Step by Step Solution

1. Step 1: Write the proportion equation
   118,824.60 : 163,978.20 = 65,108.46 : x
2. Step 2: Convert to fraction form
   118,824.60/163,978.20 = 65,108.46/x
3. Step 3: Cross multiply
   118,824.60x = 163,978.20 × 65,108.46
4. Step 4: Simplify right side
   118,824.60x = 10,676,368,075.57
5. Step 5: Solve for x
   x = 10,676,368,075.57/118,824.60
6. Step 6: Final answer
   x = 89,849.81