Finding the Fourth Proportional to 73,131.48, 109,697.76 and 20,541.96

Step by Step Solution

1. Step 1: Write the proportion equation
   73,131.48 : 109,697.76 = 20,541.96 : x
2. Step 2: Convert to fraction form
   73,131.48/109,697.76 = 20,541.96/x
3. Step 3: Cross multiply
   73,131.48x = 109,697.76 × 20,541.96
4. Step 4: Simplify right side
   73,131.48x = 2,253,406,998.01
5. Step 5: Solve for x
   x = 2,253,406,998.01/73,131.48
6. Step 6: Final answer
   x = 30,813.09