Finding the Fourth Proportional to 31,667.56, 47,538.16 and 18,529.36

Step by Step Solution

1. Step 1: Write the proportion equation
   31,667.56 : 47,538.16 = 18,529.36 : x
2. Step 2: Convert to fraction form
   31,667.56/47,538.16 = 18,529.36/x
3. Step 3: Cross multiply
   31,667.56x = 47,538.16 × 18,529.36
4. Step 4: Simplify right side
   31,667.56x = 880,851,680.38
5. Step 5: Solve for x
   x = 880,851,680.38/31,667.56
6. Step 6: Final answer
   x = 27,815.58