Finding the Fourth Proportional to 124,538.72, 171,862.56 and 70,823.72

Step by Step Solution

1. Step 1: Write the proportion equation
   124,538.72 : 171,862.56 = 70,823.72 : x
2. Step 2: Convert to fraction form
   124,538.72/171,862.56 = 70,823.72/x
3. Step 3: Cross multiply
   124,538.72x = 171,862.56 × 70,823.72
4. Step 4: Simplify right side
   124,538.72x = 12,171,945,827.92
5. Step 5: Solve for x
   x = 12,171,945,827.92/124,538.72
6. Step 6: Final answer
   x = 97,736.24