Finding the Fourth Proportional to 19,061.67, 26,314.15 and 12,698.87

Step by Step Solution

1. Step 1: Write the proportion equation
   19,061.67 : 26,314.15 = 12,698.87 : x
2. Step 2: Convert to fraction form
   19,061.67/26,314.15 = 12,698.87/x
3. Step 3: Cross multiply
   19,061.67x = 26,314.15 × 12,698.87
4. Step 4: Simplify right side
   19,061.67x = 334,159,978.52
5. Step 5: Solve for x
   x = 334,159,978.52/19,061.67
6. Step 6: Final answer
   x = 17,530.46