Finding the Fourth Proportional to 13,005.76, 19,510.48 and 3,770.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,005.76 : 19,510.48 = 3,770.56 : x
2. Step 2: Convert to fraction form
   13,005.76/19,510.48 = 3,770.56/x
3. Step 3: Cross multiply
   13,005.76x = 19,510.48 × 3,770.56
4. Step 4: Simplify right side
   13,005.76x = 73,565,435.47
5. Step 5: Solve for x
   x = 73,565,435.47/13,005.76
6. Step 6: Final answer
   x = 5,656.37