Finding the Fourth Proportional to 72,265.60, 99,628.32 and 50,726.08

Step by Step Solution

1. Step 1: Write the proportion equation
   72,265.60 : 99,628.32 = 50,726.08 : x
2. Step 2: Convert to fraction form
   72,265.60/99,628.32 = 50,726.08/x
3. Step 3: Cross multiply
   72,265.60x = 99,628.32 × 50,726.08
4. Step 4: Simplify right side
   72,265.60x = 5,053,754,130.59
5. Step 5: Solve for x
   x = 5,053,754,130.59/72,265.60
6. Step 6: Final answer
   x = 69,933.05