Finding the Fourth Proportional to 13,077.17, 19,609.58 and 4,751.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,077.17 : 19,609.58 = 4,751.31 : x
2. Step 2: Convert to fraction form
   13,077.17/19,609.58 = 4,751.31/x
3. Step 3: Cross multiply
   13,077.17x = 19,609.58 × 4,751.31
4. Step 4: Simplify right side
   13,077.17x = 93,171,169.79
5. Step 5: Solve for x
   x = 93,171,169.79/13,077.17
6. Step 6: Final answer
   x = 7,124.72