Finding the Fourth Proportional to 103,452.71, 155,175.99 and 28,577.35

Step by Step Solution

1. Step 1: Write the proportion equation
   103,452.71 : 155,175.99 = 28,577.35 : x
2. Step 2: Convert to fraction form
   103,452.71/155,175.99 = 28,577.35/x
3. Step 3: Cross multiply
   103,452.71x = 155,175.99 × 28,577.35
4. Step 4: Simplify right side
   103,452.71x = 4,434,518,189.89
5. Step 5: Solve for x
   x = 4,434,518,189.89/103,452.71
6. Step 6: Final answer
   x = 42,865.17