Finding the Fourth Proportional to 13,200.54, 19,751.60 and 13,052.91

Step by Step Solution

1. Step 1: Write the proportion equation
   13,200.54 : 19,751.60 = 13,052.91 : x
2. Step 2: Convert to fraction form
   13,200.54/19,751.60 = 13,052.91/x
3. Step 3: Cross multiply
   13,200.54x = 19,751.60 × 13,052.91
4. Step 4: Simplify right side
   13,200.54x = 257,815,791.89
5. Step 5: Solve for x
   x = 257,815,791.89/13,200.54
6. Step 6: Final answer
   x = 19,530.70