Finding the Fourth Proportional to 118,516.50, 163,552.77 and 64,801.94

Step by Step Solution

1. Step 1: Write the proportion equation
   118,516.50 : 163,552.77 = 64,801.94 : x
2. Step 2: Convert to fraction form
   118,516.50/163,552.77 = 64,801.94/x
3. Step 3: Cross multiply
   118,516.50x = 163,552.77 × 64,801.94
4. Step 4: Simplify right side
   118,516.50x = 10,598,535,970.61
5. Step 5: Solve for x
   x = 10,598,535,970.61/118,516.50
6. Step 6: Final answer
   x = 89,426.67