Finding the Fourth Proportional to 111,654.63, 154,090.28 and 63,906.89

Step by Step Solution

1. Step 1: Write the proportion equation
   111,654.63 : 154,090.28 = 63,906.89 : x
2. Step 2: Convert to fraction form
   111,654.63/154,090.28 = 63,906.89/x
3. Step 3: Cross multiply
   111,654.63x = 154,090.28 × 63,906.89
4. Step 4: Simplify right side
   111,654.63x = 9,847,429,963.35
5. Step 5: Solve for x
   x = 9,847,429,963.35/111,654.63
6. Step 6: Final answer
   x = 88,195.45