Finding the Fourth Proportional to 13,032.72, 19,549.06 and 3,172

Step by Step Solution

1. Step 1: Write the proportion equation
   13,032.72 : 19,549.06 = 3,172 : x
2. Step 2: Convert to fraction form
   13,032.72/19,549.06 = 3,172/x
3. Step 3: Cross multiply
   13,032.72x = 19,549.06 × 3,172
4. Step 4: Simplify right side
   13,032.72x = 62,009,618.32
5. Step 5: Solve for x
   x = 62,009,618.32/13,032.72
6. Step 6: Final answer
   x = 4,758.00