Finding the Fourth Proportional to 11,585.52, 17,378.90 and 3,687.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,585.52 : 17,378.90 = 3,687.50 : x
2. Step 2: Convert to fraction form
   11,585.52/17,378.90 = 3,687.50/x
3. Step 3: Cross multiply
   11,585.52x = 17,378.90 × 3,687.50
4. Step 4: Simplify right side
   11,585.52x = 64,084,588.42
5. Step 5: Solve for x
   x = 64,084,588.42/11,585.52
6. Step 6: Final answer
   x = 5,531.44