Finding the Fourth Proportional to 7,116.30, 9,811.89 and 5,432.58

Step by Step Solution

1. Step 1: Write the proportion equation
   7,116.30 : 9,811.89 = 5,432.58 : x
2. Step 2: Convert to fraction form
   7,116.30/9,811.89 = 5,432.58/x
3. Step 3: Cross multiply
   7,116.30x = 9,811.89 × 5,432.58
4. Step 4: Simplify right side
   7,116.30x = 53,303,877.38
5. Step 5: Solve for x
   x = 53,303,877.38/7,116.30
6. Step 6: Final answer
   x = 7,490.39