Finding the Fourth Proportional to 9,611.15, 13,263.48 and 5,362.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,611.15 : 13,263.48 = 5,362.61 : x
2. Step 2: Convert to fraction form
   9,611.15/13,263.48 = 5,362.61/x
3. Step 3: Cross multiply
   9,611.15x = 13,263.48 × 5,362.61
4. Step 4: Simplify right side
   9,611.15x = 71,126,804.17
5. Step 5: Solve for x
   x = 71,126,804.17/9,611.15
6. Step 6: Final answer
   x = 7,400.45