Finding the Fourth Proportional to 82,250.92, 123,376.06 and 19,921.32

Step by Step Solution

1. Step 1: Write the proportion equation
   82,250.92 : 123,376.06 = 19,921.32 : x
2. Step 2: Convert to fraction form
   82,250.92/123,376.06 = 19,921.32/x
3. Step 3: Cross multiply
   82,250.92x = 123,376.06 × 19,921.32
4. Step 4: Simplify right side
   82,250.92x = 2,457,813,971.60
5. Step 5: Solve for x
   x = 2,457,813,971.60/82,250.92
6. Step 6: Final answer
   x = 29,881.90