Finding the Fourth Proportional to 13,077.18, 19,609.56 and 4,751.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,077.18 : 19,609.56 = 4,751.31 : x
2. Step 2: Convert to fraction form
   13,077.18/19,609.56 = 4,751.31/x
3. Step 3: Cross multiply
   13,077.18x = 19,609.56 × 4,751.31
4. Step 4: Simplify right side
   13,077.18x = 93,171,098.52
5. Step 5: Solve for x
   x = 93,171,098.52/13,077.18
6. Step 6: Final answer
   x = 7,124.71