Finding the Fourth Proportional to 82,131.86, 123,197.58 and 19,802.36

Step by Step Solution

1. Step 1: Write the proportion equation
   82,131.86 : 123,197.58 = 19,802.36 : x
2. Step 2: Convert to fraction form
   82,131.86/123,197.58 = 19,802.36/x
3. Step 3: Cross multiply
   82,131.86x = 123,197.58 × 19,802.36
4. Step 4: Simplify right side
   82,131.86x = 2,439,602,830.29
5. Step 5: Solve for x
   x = 2,439,602,830.29/82,131.86
6. Step 6: Final answer
   x = 29,703.49