Finding the Fourth Proportional to 72,509.13, 108,768.88 and 30,346.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,509.13 : 108,768.88 = 30,346.76 : x
2. Step 2: Convert to fraction form
   72,509.13/108,768.88 = 30,346.76/x
3. Step 3: Cross multiply
   72,509.13x = 108,768.88 × 30,346.76
4. Step 4: Simplify right side
   72,509.13x = 3,300,783,096.83
5. Step 5: Solve for x
   x = 3,300,783,096.83/72,509.13
6. Step 6: Final answer
   x = 45,522.31