Finding the Fourth Proportional to 10,588.89, 15,887.79 and 5,328.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,588.89 : 15,887.79 = 5,328.75 : x
2. Step 2: Convert to fraction form
   10,588.89/15,887.79 = 5,328.75/x
3. Step 3: Cross multiply
   10,588.89x = 15,887.79 × 5,328.75
4. Step 4: Simplify right side
   10,588.89x = 84,662,060.96
5. Step 5: Solve for x
   x = 84,662,060.96/10,588.89
6. Step 6: Final answer
   x = 7,995.37