Finding the Fourth Proportional to 7,018.88, 10,530.05 and 2,088.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.88 : 10,530.05 = 2,088.50 : x
2. Step 2: Convert to fraction form
   7,018.88/10,530.05 = 2,088.50/x
3. Step 3: Cross multiply
   7,018.88x = 10,530.05 × 2,088.50
4. Step 4: Simplify right side
   7,018.88x = 21,991,946.33
5. Step 5: Solve for x
   x = 21,991,946.33/7,018.88
6. Step 6: Final answer
   x = 3,133.26