Finding the Fourth Proportional to 79,229.72, 109,343.64 and 65,042.84

Step by Step Solution

1. Step 1: Write the proportion equation
   79,229.72 : 109,343.64 = 65,042.84 : x
2. Step 2: Convert to fraction form
   79,229.72/109,343.64 = 65,042.84/x
3. Step 3: Cross multiply
   79,229.72x = 109,343.64 × 65,042.84
4. Step 4: Simplify right side
   79,229.72x = 7,112,020,881.54
5. Step 5: Solve for x
   x = 7,112,020,881.54/79,229.72
6. Step 6: Final answer
   x = 89,764.56