Finding the Fourth Proportional to 79,292.39, 109,428.56 and 52,387.76

Step by Step Solution

1. Step 1: Write the proportion equation
   79,292.39 : 109,428.56 = 52,387.76 : x
2. Step 2: Convert to fraction form
   79,292.39/109,428.56 = 52,387.76/x
3. Step 3: Cross multiply
   79,292.39x = 109,428.56 × 52,387.76
4. Step 4: Simplify right side
   79,292.39x = 5,732,716,329.34
5. Step 5: Solve for x
   x = 5,732,716,329.34/79,292.39
6. Step 6: Final answer
   x = 72,298.45