Finding the Fourth Proportional to 13,141.50, 19,706.31 and 3,779.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,141.50 : 19,706.31 = 3,779.37 : x
2. Step 2: Convert to fraction form
   13,141.50/19,706.31 = 3,779.37/x
3. Step 3: Cross multiply
   13,141.50x = 19,706.31 × 3,779.37
4. Step 4: Simplify right side
   13,141.50x = 74,477,436.82
5. Step 5: Solve for x
   x = 74,477,436.82/13,141.50
6. Step 6: Final answer
   x = 5,667.35