Finding the Fourth Proportional to 72,754.61, 109,131.71 and 20,164.14

Step by Step Solution

1. Step 1: Write the proportion equation
   72,754.61 : 109,131.71 = 20,164.14 : x
2. Step 2: Convert to fraction form
   72,754.61/109,131.71 = 20,164.14/x
3. Step 3: Cross multiply
   72,754.61x = 109,131.71 × 20,164.14
4. Step 4: Simplify right side
   72,754.61x = 2,200,546,978.06
5. Step 5: Solve for x
   x = 2,200,546,978.06/72,754.61
6. Step 6: Final answer
   x = 30,246.15