Finding the Fourth Proportional to 124,521.70, 171,839.12 and 70,806.72

Step by Step Solution

1. Step 1: Write the proportion equation
   124,521.70 : 171,839.12 = 70,806.72 : x
2. Step 2: Convert to fraction form
   124,521.70/171,839.12 = 70,806.72/x
3. Step 3: Cross multiply
   124,521.70x = 171,839.12 × 70,806.72
4. Step 4: Simplify right side
   124,521.70x = 12,167,364,454.89
5. Step 5: Solve for x
   x = 12,167,364,454.89/124,521.70
6. Step 6: Final answer
   x = 97,712.80