Finding the Fourth Proportional to 13,245.22, 19,870.71 and 4,011.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,245.22 : 19,870.71 = 4,011.94 : x
2. Step 2: Convert to fraction form
   13,245.22/19,870.71 = 4,011.94/x
3. Step 3: Cross multiply
   13,245.22x = 19,870.71 × 4,011.94
4. Step 4: Simplify right side
   13,245.22x = 79,720,096.28
5. Step 5: Solve for x
   x = 79,720,096.28/13,245.22
6. Step 6: Final answer
   x = 6,018.78