Finding the Fourth Proportional to 82,047.57, 123,071.34 and 19,718.07

Step by Step Solution

1. Step 1: Write the proportion equation
   82,047.57 : 123,071.34 = 19,718.07 : x
2. Step 2: Convert to fraction form
   82,047.57/123,071.34 = 19,718.07/x
3. Step 3: Cross multiply
   82,047.57x = 123,071.34 × 19,718.07
4. Step 4: Simplify right side
   82,047.57x = 2,426,729,297.11
5. Step 5: Solve for x
   x = 2,426,729,297.11/82,047.57
6. Step 6: Final answer
   x = 29,577.10