Finding the Fourth Proportional to 124,282.77, 171,469.30 and 72,587.98

Step by Step Solution

1. Step 1: Write the proportion equation
   124,282.77 : 171,469.30 = 72,587.98 : x
2. Step 2: Convert to fraction form
   124,282.77/171,469.30 = 72,587.98/x
3. Step 3: Cross multiply
   124,282.77x = 171,469.30 × 72,587.98
4. Step 4: Simplify right side
   124,282.77x = 12,446,610,532.63
5. Step 5: Solve for x
   x = 12,446,610,532.63/124,282.77
6. Step 6: Final answer
   x = 100,147.52