Finding the Fourth Proportional to 79,288.90, 109,423.74 and 52,384.21

Step by Step Solution

1. Step 1: Write the proportion equation
   79,288.90 : 109,423.74 = 52,384.21 : x
2. Step 2: Convert to fraction form
   79,288.90/109,423.74 = 52,384.21/x
3. Step 3: Cross multiply
   79,288.90x = 109,423.74 × 52,384.21
4. Step 4: Simplify right side
   79,288.90x = 5,732,076,175.15
5. Step 5: Solve for x
   x = 5,732,076,175.15/79,288.90
6. Step 6: Final answer
   x = 72,293.55