Finding the Fourth Proportional to 11,870.76, 16,381.26 and 7,152.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870.76 : 16,381.26 = 7,152.24 : x
2. Step 2: Convert to fraction form
   11,870.76/16,381.26 = 7,152.24/x
3. Step 3: Cross multiply
   11,870.76x = 16,381.26 × 7,152.24
4. Step 4: Simplify right side
   11,870.76x = 117,162,703.02
5. Step 5: Solve for x
   x = 117,162,703.02/11,870.76
6. Step 6: Final answer
   x = 9,869.86