Finding the Fourth Proportional to 79,293.40, 109,429.95 and 52,388.71

Step by Step Solution

1. Step 1: Write the proportion equation
   79,293.40 : 109,429.95 = 52,388.71 : x
2. Step 2: Convert to fraction form
   79,293.40/109,429.95 = 52,388.71/x
3. Step 3: Cross multiply
   79,293.40x = 109,429.95 × 52,388.71
4. Step 4: Simplify right side
   79,293.40x = 5,732,893,915.86
5. Step 5: Solve for x
   x = 5,732,893,915.86/79,293.40
6. Step 6: Final answer
   x = 72,299.76