Finding the Fourth Proportional to 72,145.08, 108,159.33 and 30,056.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,145.08 : 108,159.33 = 30,056.88 : x
2. Step 2: Convert to fraction form
   72,145.08/108,159.33 = 30,056.88/x
3. Step 3: Cross multiply
   72,145.08x = 108,159.33 × 30,056.88
4. Step 4: Simplify right side
   72,145.08x = 3,250,932,002.69
5. Step 5: Solve for x
   x = 3,250,932,002.69/72,145.08
6. Step 6: Final answer
   x = 45,061.04