Finding the Fourth Proportional to 82,250.76, 123,376.54 and 19,921.26

Step by Step Solution

1. Step 1: Write the proportion equation
   82,250.76 : 123,376.54 = 19,921.26 : x
2. Step 2: Convert to fraction form
   82,250.76/123,376.54 = 19,921.26/x
3. Step 3: Cross multiply
   82,250.76x = 123,376.54 × 19,921.26
4. Step 4: Simplify right side
   82,250.76x = 2,457,816,131.24
5. Step 5: Solve for x
   x = 2,457,816,131.24/82,250.76
6. Step 6: Final answer
   x = 29,881.99