Finding the Fourth Proportional to 7,885.51, 10,880.07 and 5,196.43

Step by Step Solution

1. Step 1: Write the proportion equation
   7,885.51 : 10,880.07 = 5,196.43 : x
2. Step 2: Convert to fraction form
   7,885.51/10,880.07 = 5,196.43/x
3. Step 3: Cross multiply
   7,885.51x = 10,880.07 × 5,196.43
4. Step 4: Simplify right side
   7,885.51x = 56,537,522.15
5. Step 5: Solve for x
   x = 56,537,522.15/7,885.51
6. Step 6: Final answer
   x = 7,169.80