Finding the Fourth Proportional to 17,779.43, 26,611.27 and 13,097.59

Step by Step Solution

1. Step 1: Write the proportion equation
   17,779.43 : 26,611.27 = 13,097.59 : x
2. Step 2: Convert to fraction form
   17,779.43/26,611.27 = 13,097.59/x
3. Step 3: Cross multiply
   17,779.43x = 26,611.27 × 13,097.59
4. Step 4: Simplify right side
   17,779.43x = 348,543,404.57
5. Step 5: Solve for x
   x = 348,543,404.57/17,779.43
6. Step 6: Final answer
   x = 19,603.74