Finding the Fourth Proportional to 118,363.52, 163,340.82 and 64,648.55

Step by Step Solution

1. Step 1: Write the proportion equation
   118,363.52 : 163,340.82 = 64,648.55 : x
2. Step 2: Convert to fraction form
   118,363.52/163,340.82 = 64,648.55/x
3. Step 3: Cross multiply
   118,363.52x = 163,340.82 × 64,648.55
4. Step 4: Simplify right side
   118,363.52x = 10,559,746,352.11
5. Step 5: Solve for x
   x = 10,559,746,352.11/118,363.52
6. Step 6: Final answer
   x = 89,214.54