Finding the Fourth Proportional to 13,180.77, 19,772.17 and 3,820.93

Step by Step Solution

1. Step 1: Write the proportion equation
   13,180.77 : 19,772.17 = 3,820.93 : x
2. Step 2: Convert to fraction form
   13,180.77/19,772.17 = 3,820.93/x
3. Step 3: Cross multiply
   13,180.77x = 19,772.17 × 3,820.93
4. Step 4: Simplify right side
   13,180.77x = 75,548,018.54
5. Step 5: Solve for x
   x = 75,548,018.54/13,180.77
6. Step 6: Final answer
   x = 5,731.68