Finding the Fourth Proportional to 103,451.82, 155,149.71 and 28,553.95

Step by Step Solution

1. Step 1: Write the proportion equation
   103,451.82 : 155,149.71 = 28,553.95 : x
2. Step 2: Convert to fraction form
   103,451.82/155,149.71 = 28,553.95/x
3. Step 3: Cross multiply
   103,451.82x = 155,149.71 × 28,553.95
4. Step 4: Simplify right side
   103,451.82x = 4,430,137,061.85
5. Step 5: Solve for x
   x = 4,430,137,061.85/103,451.82
6. Step 6: Final answer
   x = 42,823.19