Finding the Fourth Proportional to 72,748.52, 109,078.86 and 28,366.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,748.52 : 109,078.86 = 28,366.76 : x
2. Step 2: Convert to fraction form
   72,748.52/109,078.86 = 28,366.76/x
3. Step 3: Cross multiply
   72,748.52x = 109,078.86 × 28,366.76
4. Step 4: Simplify right side
   72,748.52x = 3,094,213,842.69
5. Step 5: Solve for x
   x = 3,094,213,842.69/72,748.52
6. Step 6: Final answer
   x = 42,533.01