Finding the Fourth Proportional to 124,821.40, 175,061 and 124,821.40

Step by Step Solution

1. Step 1: Write the proportion equation
   124,821.40 : 175,061 = 124,821.40 : x
2. Step 2: Convert to fraction form
   124,821.40/175,061 = 124,821.40/x
3. Step 3: Cross multiply
   124,821.40x = 175,061 × 124,821.40
4. Step 4: Simplify right side
   124,821.40x = 21,851,359,105.40
5. Step 5: Solve for x
   x = 21,851,359,105.40/124,821.40
6. Step 6: Final answer
   x = 175,061