Finding the Fourth Proportional to 82,314.63, 123,472.22 and 19,985.13

Step by Step Solution

1. Step 1: Write the proportion equation
   82,314.63 : 123,472.22 = 19,985.13 : x
2. Step 2: Convert to fraction form
   82,314.63/123,472.22 = 19,985.13/x
3. Step 3: Cross multiply
   82,314.63x = 123,472.22 × 19,985.13
4. Step 4: Simplify right side
   82,314.63x = 2,467,608,268.16
5. Step 5: Solve for x
   x = 2,467,608,268.16/82,314.63
6. Step 6: Final answer
   x = 29,977.76