Finding the Fourth Proportional to 79,600.51, 119,401.98 and 20,434.87

Step by Step Solution

1. Step 1: Write the proportion equation
   79,600.51 : 119,401.98 = 20,434.87 : x
2. Step 2: Convert to fraction form
   79,600.51/119,401.98 = 20,434.87/x
3. Step 3: Cross multiply
   79,600.51x = 119,401.98 × 20,434.87
4. Step 4: Simplify right side
   79,600.51x = 2,439,963,939.04
5. Step 5: Solve for x
   x = 2,439,963,939.04/79,600.51
6. Step 6: Final answer
   x = 30,652.62