Finding the Fourth Proportional to 73,141.14, 109,715.98 and 20,554.72

Step by Step Solution

1. Step 1: Write the proportion equation
   73,141.14 : 109,715.98 = 20,554.72 : x
2. Step 2: Convert to fraction form
   73,141.14/109,715.98 = 20,554.72/x
3. Step 3: Cross multiply
   73,141.14x = 109,715.98 × 20,554.72
4. Step 4: Simplify right side
   73,141.14x = 2,255,181,248.43
5. Step 5: Solve for x
   x = 2,255,181,248.43/73,141.14
6. Step 6: Final answer
   x = 30,833.28