Finding the Fourth Proportional to 117,243.72, 161,796.48 and 63,528.72

Step by Step Solution

1. Step 1: Write the proportion equation
   117,243.72 : 161,796.48 = 63,528.72 : x
2. Step 2: Convert to fraction form
   117,243.72/161,796.48 = 63,528.72/x
3. Step 3: Cross multiply
   117,243.72x = 161,796.48 × 63,528.72
4. Step 4: Simplify right side
   117,243.72x = 10,278,723,274.91
5. Step 5: Solve for x
   x = 10,278,723,274.91/117,243.72
6. Step 6: Final answer
   x = 87,669.71