Finding the Fourth Proportional to 7,191.67, 10,785.23 and 3,030.91

Step by Step Solution

1. Step 1: Write the proportion equation
   7,191.67 : 10,785.23 = 3,030.91 : x
2. Step 2: Convert to fraction form
   7,191.67/10,785.23 = 3,030.91/x
3. Step 3: Cross multiply
   7,191.67x = 10,785.23 × 3,030.91
4. Step 4: Simplify right side
   7,191.67x = 32,689,061.46
5. Step 5: Solve for x
   x = 32,689,061.46/7,191.67
6. Step 6: Final answer
   x = 4,545.41