Finding the Fourth Proportional to 103,633.15, 155,190.52 and 82,897.15

Step by Step Solution

1. Step 1: Write the proportion equation
   103,633.15 : 155,190.52 = 82,897.15 : x
2. Step 2: Convert to fraction form
   103,633.15/155,190.52 = 82,897.15/x
3. Step 3: Cross multiply
   103,633.15x = 155,190.52 × 82,897.15
4. Step 4: Simplify right side
   103,633.15x = 12,864,851,815.02
5. Step 5: Solve for x
   x = 12,864,851,815.02/103,633.15
6. Step 6: Final answer
   x = 124,138.38