Finding the Fourth Proportional to 73,043.06, 109,578.81 and 28,061.15

Step by Step Solution

1. Step 1: Write the proportion equation
   73,043.06 : 109,578.81 = 28,061.15 : x
2. Step 2: Convert to fraction form
   73,043.06/109,578.81 = 28,061.15/x
3. Step 3: Cross multiply
   73,043.06x = 109,578.81 × 28,061.15
4. Step 4: Simplify right side
   73,043.06x = 3,074,907,424.23
5. Step 5: Solve for x
   x = 3,074,907,424.23/73,043.06
6. Step 6: Final answer
   x = 42,097.19