Finding the Fourth Proportional to 110,621.47, 165,885.40 and 60,687.31

Step by Step Solution

1. Step 1: Write the proportion equation
   110,621.47 : 165,885.40 = 60,687.31 : x
2. Step 2: Convert to fraction form
   110,621.47/165,885.40 = 60,687.31/x
3. Step 3: Cross multiply
   110,621.47x = 165,885.40 × 60,687.31
4. Step 4: Simplify right side
   110,621.47x = 10,067,138,694.27
5. Step 5: Solve for x
   x = 10,067,138,694.27/110,621.47
6. Step 6: Final answer
   x = 91,005.29