Finding the Fourth Proportional to 108,771.42, 163,150.54 and 64,678.77

Step by Step Solution

1. Step 1: Write the proportion equation
   108,771.42 : 163,150.54 = 64,678.77 : x
2. Step 2: Convert to fraction form
   108,771.42/163,150.54 = 64,678.77/x
3. Step 3: Cross multiply
   108,771.42x = 163,150.54 × 64,678.77
4. Step 4: Simplify right side
   108,771.42x = 10,552,376,090.34
5. Step 5: Solve for x
   x = 10,552,376,090.34/108,771.42
6. Step 6: Final answer
   x = 97,014.23