Finding the Fourth Proportional to 10,335.53, 15,505.63 and 3,761.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,335.53 : 15,505.63 = 3,761.78 : x
2. Step 2: Convert to fraction form
   10,335.53/15,505.63 = 3,761.78/x
3. Step 3: Cross multiply
   10,335.53x = 15,505.63 × 3,761.78
4. Step 4: Simplify right side
   10,335.53x = 58,328,681.89
5. Step 5: Solve for x
   x = 58,328,681.89/10,335.53
6. Step 6: Final answer
   x = 5,643.51