Finding the Fourth Proportional to 72,942.55, 109,332.52 and 30,809.99

Step by Step Solution

1. Step 1: Write the proportion equation
   72,942.55 : 109,332.52 = 30,809.99 : x
2. Step 2: Convert to fraction form
   72,942.55/109,332.52 = 30,809.99/x
3. Step 3: Cross multiply
   72,942.55x = 109,332.52 × 30,809.99
4. Step 4: Simplify right side
   72,942.55x = 3,368,534,044.18
5. Step 5: Solve for x
   x = 3,368,534,044.18/72,942.55
6. Step 6: Final answer
   x = 46,180.65