Finding the Fourth Proportional to 82,265.16, 123,397.80 and 19,935.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,265.16 : 123,397.80 = 19,935.72 : x
2. Step 2: Convert to fraction form
   82,265.16/123,397.80 = 19,935.72/x
3. Step 3: Cross multiply
   82,265.16x = 123,397.80 × 19,935.72
4. Step 4: Simplify right side
   82,265.16x = 2,460,023,989.42
5. Step 5: Solve for x
   x = 2,460,023,989.42/82,265.16
6. Step 6: Final answer
   x = 29,903.59