Finding the Fourth Proportional to 73,152.10, 109,662.45 and 28,809.10

Step by Step Solution

1. Step 1: Write the proportion equation
   73,152.10 : 109,662.45 = 28,809.10 : x
2. Step 2: Convert to fraction form
   73,152.10/109,662.45 = 28,809.10/x
3. Step 3: Cross multiply
   73,152.10x = 109,662.45 × 28,809.10
4. Step 4: Simplify right side
   73,152.10x = 3,159,276,488.30
5. Step 5: Solve for x
   x = 3,159,276,488.30/73,152.10
6. Step 6: Final answer
   x = 43,187.78