Finding the Fourth Proportional to 9,815.31, 13,545.50 and 5,624.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,815.31 : 13,545.50 = 5,624.37 : x
2. Step 2: Convert to fraction form
   9,815.31/13,545.50 = 5,624.37/x
3. Step 3: Cross multiply
   9,815.31x = 13,545.50 × 5,624.37
4. Step 4: Simplify right side
   9,815.31x = 76,184,875.71
5. Step 5: Solve for x
   x = 76,184,875.71/9,815.31
6. Step 6: Final answer
   x = 7,761.84