Finding the Fourth Proportional to 82,054.71, 123,082.01 and 19,725.21

Step by Step Solution

1. Step 1: Write the proportion equation
   82,054.71 : 123,082.01 = 19,725.21 : x
2. Step 2: Convert to fraction form
   82,054.71/123,082.01 = 19,725.21/x
3. Step 3: Cross multiply
   82,054.71x = 123,082.01 × 19,725.21
4. Step 4: Simplify right side
   82,054.71x = 2,427,818,395.85
5. Step 5: Solve for x
   x = 2,427,818,395.85/82,054.71
6. Step 6: Final answer
   x = 29,587.80