Finding the Fourth Proportional to 13,527.32, 18,667.56 and 7,477.95

Step by Step Solution

1. Step 1: Write the proportion equation
   13,527.32 : 18,667.56 = 7,477.95 : x
2. Step 2: Convert to fraction form
   13,527.32/18,667.56 = 7,477.95/x
3. Step 3: Cross multiply
   13,527.32x = 18,667.56 × 7,477.95
4. Step 4: Simplify right side
   13,527.32x = 139,595,020.84
5. Step 5: Solve for x
   x = 139,595,020.84/13,527.32
6. Step 6: Final answer
   x = 10,319.49