Finding the Fourth Proportional to 82,322.28, 123,482.52 and 19,992.80

Step by Step Solution

1. Step 1: Write the proportion equation
   82,322.28 : 123,482.52 = 19,992.80 : x
2. Step 2: Convert to fraction form
   82,322.28/123,482.52 = 19,992.80/x
3. Step 3: Cross multiply
   82,322.28x = 123,482.52 × 19,992.80
4. Step 4: Simplify right side
   82,322.28x = 2,468,761,325.86
5. Step 5: Solve for x
   x = 2,468,761,325.86/82,322.28
6. Step 6: Final answer
   x = 29,988.98