Finding the Fourth Proportional to 82,089.61, 123,134.43 and 19,760.11

Step by Step Solution

1. Step 1: Write the proportion equation
   82,089.61 : 123,134.43 = 19,760.11 : x
2. Step 2: Convert to fraction form
   82,089.61/123,134.43 = 19,760.11/x
3. Step 3: Cross multiply
   82,089.61x = 123,134.43 × 19,760.11
4. Step 4: Simplify right side
   82,089.61x = 2,433,149,881.59
5. Step 5: Solve for x
   x = 2,433,149,881.59/82,089.61
6. Step 6: Final answer
   x = 29,640.17