Finding the Fourth Proportional to 72,091.61, 108,075.82 and 50,965.19

Step by Step Solution

1. Step 1: Write the proportion equation
   72,091.61 : 108,075.82 = 50,965.19 : x
2. Step 2: Convert to fraction form
   72,091.61/108,075.82 = 50,965.19/x
3. Step 3: Cross multiply
   72,091.61x = 108,075.82 × 50,965.19
4. Step 4: Simplify right side
   72,091.61x = 5,508,104,700.71
5. Step 5: Solve for x
   x = 5,508,104,700.71/72,091.61
6. Step 6: Final answer
   x = 76,404.24