Finding the Fourth Proportional to 143,563.34, 215,108.04 and 83,422.98

Step by Step Solution

1. Step 1: Write the proportion equation
   143,563.34 : 215,108.04 = 83,422.98 : x
2. Step 2: Convert to fraction form
   143,563.34/215,108.04 = 83,422.98/x
3. Step 3: Cross multiply
   143,563.34x = 215,108.04 × 83,422.98
4. Step 4: Simplify right side
   143,563.34x = 17,944,953,718.76
5. Step 5: Solve for x
   x = 17,944,953,718.76/143,563.34
6. Step 6: Final answer
   x = 124,996.77