Finding the Fourth Proportional to 9,907.81, 14,863.66 and 3,667.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,907.81 : 14,863.66 = 3,667.88 : x
2. Step 2: Convert to fraction form
   9,907.81/14,863.66 = 3,667.88/x
3. Step 3: Cross multiply
   9,907.81x = 14,863.66 × 3,667.88
4. Step 4: Simplify right side
   9,907.81x = 54,518,056.09
5. Step 5: Solve for x
   x = 54,518,056.09/9,907.81
6. Step 6: Final answer
   x = 5,502.53