Finding the Fourth Proportional to 118,803.98, 163,949.61 and 64,356.27

Step by Step Solution

1. Step 1: Write the proportion equation
   118,803.98 : 163,949.61 = 64,356.27 : x
2. Step 2: Convert to fraction form
   118,803.98/163,949.61 = 64,356.27/x
3. Step 3: Cross multiply
   118,803.98x = 163,949.61 × 64,356.27
4. Step 4: Simplify right side
   118,803.98x = 10,551,185,367.55
5. Step 5: Solve for x
   x = 10,551,185,367.55/118,803.98
6. Step 6: Final answer
   x = 88,811.72