Finding the Fourth Proportional to 11,911.76, 17,870.13 and 3,592.37

Step by Step Solution

1. Step 1: Write the proportion equation
   11,911.76 : 17,870.13 = 3,592.37 : x
2. Step 2: Convert to fraction form
   11,911.76/17,870.13 = 3,592.37/x
3. Step 3: Cross multiply
   11,911.76x = 17,870.13 × 3,592.37
4. Step 4: Simplify right side
   11,911.76x = 64,196,118.91
5. Step 5: Solve for x
   x = 64,196,118.91/11,911.76
6. Step 6: Final answer
   x = 5,389.31