Finding the Fourth Proportional to 72,565.15, 108,889.76 and 30,441.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,565.15 : 108,889.76 = 30,441.50 : x
2. Step 2: Convert to fraction form
   72,565.15/108,889.76 = 30,441.50/x
3. Step 3: Cross multiply
   72,565.15x = 108,889.76 × 30,441.50
4. Step 4: Simplify right side
   72,565.15x = 3,314,767,629.04
5. Step 5: Solve for x
   x = 3,314,767,629.04/72,565.15
6. Step 6: Final answer
   x = 45,679.88