Finding the Fourth Proportional to 88,719.68, 133,105.50 and 33,320

Step by Step Solution

1. Step 1: Write the proportion equation
   88,719.68 : 133,105.50 = 33,320 : x
2. Step 2: Convert to fraction form
   88,719.68/133,105.50 = 33,320/x
3. Step 3: Cross multiply
   88,719.68x = 133,105.50 × 33,320
4. Step 4: Simplify right side
   88,719.68x = 4,435,075,260
5. Step 5: Solve for x
   x = 4,435,075,260/88,719.68
6. Step 6: Final answer
   x = 49,989.76