Finding the Fourth Proportional to 13,002.90, 19,507.43 and 4,237.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,002.90 : 19,507.43 = 4,237.82 : x
2. Step 2: Convert to fraction form
   13,002.90/19,507.43 = 4,237.82/x
3. Step 3: Cross multiply
   13,002.90x = 19,507.43 × 4,237.82
4. Step 4: Simplify right side
   13,002.90x = 82,668,858.28
5. Step 5: Solve for x
   x = 82,668,858.28/13,002.90
6. Step 6: Final answer
   x = 6,357.72