Finding the Fourth Proportional to 72,976.29, 109,475.70 and 30,856.52

Step by Step Solution

1. Step 1: Write the proportion equation
   72,976.29 : 109,475.70 = 30,856.52 : x
2. Step 2: Convert to fraction form
   72,976.29/109,475.70 = 30,856.52/x
3. Step 3: Cross multiply
   72,976.29x = 109,475.70 × 30,856.52
4. Step 4: Simplify right side
   72,976.29x = 3,378,038,579.19
5. Step 5: Solve for x
   x = 3,378,038,579.19/72,976.29
6. Step 6: Final answer
   x = 46,289.54