Finding the Fourth Proportional to 7,031.02, 10,547.89 and 2,100.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,031.02 : 10,547.89 = 2,100.55 : x
2. Step 2: Convert to fraction form
   7,031.02/10,547.89 = 2,100.55/x
3. Step 3: Cross multiply
   7,031.02x = 10,547.89 × 2,100.55
4. Step 4: Simplify right side
   7,031.02x = 22,156,370.34
5. Step 5: Solve for x
   x = 22,156,370.34/7,031.02
6. Step 6: Final answer
   x = 3,151.23