Finding the Fourth Proportional to 293,720.72, 440,581.50 and 72,104.72

Step by Step Solution

1. Step 1: Write the proportion equation
   293,720.72 : 440,581.50 = 72,104.72 : x
2. Step 2: Convert to fraction form
   293,720.72/440,581.50 = 72,104.72/x
3. Step 3: Cross multiply
   293,720.72x = 440,581.50 × 72,104.72
4. Step 4: Simplify right side
   293,720.72x = 31,768,005,694.68
5. Step 5: Solve for x
   x = 31,768,005,694.68/293,720.72
6. Step 6: Final answer
   x = 108,157.18