Finding the Fourth Proportional to 55,981.12, 77,250.72 and 33,620.80

Step by Step Solution

1. Step 1: Write the proportion equation
   55,981.12 : 77,250.72 = 33,620.80 : x
2. Step 2: Convert to fraction form
   55,981.12/77,250.72 = 33,620.80/x
3. Step 3: Cross multiply
   55,981.12x = 77,250.72 × 33,620.80
4. Step 4: Simplify right side
   55,981.12x = 2,597,231,006.98
5. Step 5: Solve for x
   x = 2,597,231,006.98/55,981.12
6. Step 6: Final answer
   x = 46,394.77