Finding the Fourth Proportional to 71,036.68, 106,453.50 and 52,168.72

Step by Step Solution

1. Step 1: Write the proportion equation
   71,036.68 : 106,453.50 = 52,168.72 : x
2. Step 2: Convert to fraction form
   71,036.68/106,453.50 = 52,168.72/x
3. Step 3: Cross multiply
   71,036.68x = 106,453.50 × 52,168.72
4. Step 4: Simplify right side
   71,036.68x = 5,553,542,834.52
5. Step 5: Solve for x
   x = 5,553,542,834.52/71,036.68
6. Step 6: Final answer
   x = 78,178.52