Finding the Fourth Proportional to 124,710.30, 172,156.82 and 79,450.34

Step by Step Solution

1. Step 1: Write the proportion equation
   124,710.30 : 172,156.82 = 79,450.34 : x
2. Step 2: Convert to fraction form
   124,710.30/172,156.82 = 79,450.34/x
3. Step 3: Cross multiply
   124,710.30x = 172,156.82 × 79,450.34
4. Step 4: Simplify right side
   124,710.30x = 13,677,916,624.28
5. Step 5: Solve for x
   x = 13,677,916,624.28/124,710.30
6. Step 6: Final answer
   x = 109,677.52