Finding the Fourth Proportional to 117,463.72, 162,101.16 and 63,749.20

Step by Step Solution

1. Step 1: Write the proportion equation
   117,463.72 : 162,101.16 = 63,749.20 : x
2. Step 2: Convert to fraction form
   117,463.72/162,101.16 = 63,749.20/x
3. Step 3: Cross multiply
   117,463.72x = 162,101.16 × 63,749.20
4. Step 4: Simplify right side
   117,463.72x = 10,333,819,269.07
5. Step 5: Solve for x
   x = 10,333,819,269.07/117,463.72
6. Step 6: Final answer
   x = 87,974.56