Finding the Fourth Proportional to 19,002.50, 28,507.53 and 5,854.31

Step by Step Solution

1. Step 1: Write the proportion equation
   19,002.50 : 28,507.53 = 5,854.31 : x
2. Step 2: Convert to fraction form
   19,002.50/28,507.53 = 5,854.31/x
3. Step 3: Cross multiply
   19,002.50x = 28,507.53 × 5,854.31
4. Step 4: Simplify right side
   19,002.50x = 166,891,917.95
5. Step 5: Solve for x
   x = 166,891,917.95/19,002.50
6. Step 6: Final answer
   x = 8,782.63