Finding the Fourth Proportional to 10,887.62, 15,020.59 and 6,404.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,887.62 : 15,020.59 = 6,404.27 : x
2. Step 2: Convert to fraction form
   10,887.62/15,020.59 = 6,404.27/x
3. Step 3: Cross multiply
   10,887.62x = 15,020.59 × 6,404.27
4. Step 4: Simplify right side
   10,887.62x = 96,195,834.81
5. Step 5: Solve for x
   x = 96,195,834.81/10,887.62
6. Step 6: Final answer
   x = 8,835.35