Finding the Fourth Proportional to 72,602.40, 108,837.84 and 50,426.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,602.40 : 108,837.84 = 50,426.24 : x
2. Step 2: Convert to fraction form
   72,602.40/108,837.84 = 50,426.24/x
3. Step 3: Cross multiply
   72,602.40x = 108,837.84 × 50,426.24
4. Step 4: Simplify right side
   72,602.40x = 5,488,283,040.92
5. Step 5: Solve for x
   x = 5,488,283,040.92/72,602.40
6. Step 6: Final answer
   x = 75,593.69