Finding the Fourth Proportional to 228,870.72, 343,221.84 and 79,072.56

Step by Step Solution

1. Step 1: Write the proportion equation
   228,870.72 : 343,221.84 = 79,072.56 : x
2. Step 2: Convert to fraction form
   228,870.72/343,221.84 = 79,072.56/x
3. Step 3: Cross multiply
   228,870.72x = 343,221.84 × 79,072.56
4. Step 4: Simplify right side
   228,870.72x = 27,139,429,536.71
5. Step 5: Solve for x
   x = 27,139,429,536.71/228,870.72
6. Step 6: Final answer
   x = 118,579.74