Finding the Fourth Proportional to 9,903.41, 13,666.86 and 5,427.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,903.41 : 13,666.86 = 5,427.08 : x
2. Step 2: Convert to fraction form
   9,903.41/13,666.86 = 5,427.08/x
3. Step 3: Cross multiply
   9,903.41x = 13,666.86 × 5,427.08
4. Step 4: Simplify right side
   9,903.41x = 74,171,142.57
5. Step 5: Solve for x
   x = 74,171,142.57/9,903.41
6. Step 6: Final answer
   x = 7,489.45