Finding the Fourth Proportional to 108,870.40, 163,254.52 and 64,503.44

Step by Step Solution

1. Step 1: Write the proportion equation
   108,870.40 : 163,254.52 = 64,503.44 : x
2. Step 2: Convert to fraction form
   108,870.40/163,254.52 = 64,503.44/x
3. Step 3: Cross multiply
   108,870.40x = 163,254.52 × 64,503.44
4. Step 4: Simplify right side
   108,870.40x = 10,530,478,135.55
5. Step 5: Solve for x
   x = 10,530,478,135.55/108,870.40
6. Step 6: Final answer
   x = 96,724.90