Finding the Fourth Proportional to 72,179.88, 108,278.62 and 30,612.84

Step by Step Solution

1. Step 1: Write the proportion equation
   72,179.88 : 108,278.62 = 30,612.84 : x
2. Step 2: Convert to fraction form
   72,179.88/108,278.62 = 30,612.84/x
3. Step 3: Cross multiply
   72,179.88x = 108,278.62 × 30,612.84
4. Step 4: Simplify right side
   72,179.88x = 3,314,716,069.48
5. Step 5: Solve for x
   x = 3,314,716,069.48/72,179.88
6. Step 6: Final answer
   x = 45,922.99