Finding the Fourth Proportional to 73,004.63, 109,518.78 and 28,607.31

Step by Step Solution

1. Step 1: Write the proportion equation
   73,004.63 : 109,518.78 = 28,607.31 : x
2. Step 2: Convert to fraction form
   73,004.63/109,518.78 = 28,607.31/x
3. Step 3: Cross multiply
   73,004.63x = 109,518.78 × 28,607.31
4. Step 4: Simplify right side
   73,004.63x = 3,133,037,797.56
5. Step 5: Solve for x
   x = 3,133,037,797.56/73,004.63
6. Step 6: Final answer
   x = 42,915.61