Finding the Fourth Proportional to 13,029.35, 19,570.17 and 7,774.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,029.35 : 19,570.17 = 7,774.61 : x
2. Step 2: Convert to fraction form
   13,029.35/19,570.17 = 7,774.61/x
3. Step 3: Cross multiply
   13,029.35x = 19,570.17 × 7,774.61
4. Step 4: Simplify right side
   13,029.35x = 152,150,439.38
5. Step 5: Solve for x
   x = 152,150,439.38/13,029.35
6. Step 6: Final answer
   x = 11,677.52