Finding the Fourth Proportional to 10,356.42, 15,533.12 and 3,781.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,356.42 : 15,533.12 = 3,781.05 : x
2. Step 2: Convert to fraction form
   10,356.42/15,533.12 = 3,781.05/x
3. Step 3: Cross multiply
   10,356.42x = 15,533.12 × 3,781.05
4. Step 4: Simplify right side
   10,356.42x = 58,731,484.47
5. Step 5: Solve for x
   x = 58,731,484.47/10,356.42
6. Step 6: Final answer
   x = 5,671.02