Finding the Fourth Proportional to 82,313.31, 123,470.10 and 19,983.81

Step by Step Solution

1. Step 1: Write the proportion equation
   82,313.31 : 123,470.10 = 19,983.81 : x
2. Step 2: Convert to fraction form
   82,313.31/123,470.10 = 19,983.81/x
3. Step 3: Cross multiply
   82,313.31x = 123,470.10 × 19,983.81
4. Step 4: Simplify right side
   82,313.31x = 2,467,403,019.08
5. Step 5: Solve for x
   x = 2,467,403,019.08/82,313.31
6. Step 6: Final answer
   x = 29,975.75