Finding the Fourth Proportional to 72,738.34, 109,059.18 and 28,369.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,738.34 : 109,059.18 = 28,369.24 : x
2. Step 2: Convert to fraction form
   72,738.34/109,059.18 = 28,369.24/x
3. Step 3: Cross multiply
   72,738.34x = 109,059.18 × 28,369.24
4. Step 4: Simplify right side
   72,738.34x = 3,093,926,051.62
5. Step 5: Solve for x
   x = 3,093,926,051.62/72,738.34
6. Step 6: Final answer
   x = 42,535.01