Finding the Fourth Proportional to 82,274.61, 123,411.88 and 19,945.11

Step by Step Solution

1. Step 1: Write the proportion equation
   82,274.61 : 123,411.88 = 19,945.11 : x
2. Step 2: Convert to fraction form
   82,274.61/123,411.88 = 19,945.11/x
3. Step 3: Cross multiply
   82,274.61x = 123,411.88 × 19,945.11
4. Step 4: Simplify right side
   82,274.61x = 2,461,463,521.91
5. Step 5: Solve for x
   x = 2,461,463,521.91/82,274.61
6. Step 6: Final answer
   x = 29,917.66