Finding the Fourth Proportional to 10,061.78, 15,089.26 and 3,486.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,061.78 : 15,089.26 = 3,486.43 : x
2. Step 2: Convert to fraction form
   10,061.78/15,089.26 = 3,486.43/x
3. Step 3: Cross multiply
   10,061.78x = 15,089.26 × 3,486.43
4. Step 4: Simplify right side
   10,061.78x = 52,607,669.03
5. Step 5: Solve for x
   x = 52,607,669.03/10,061.78
6. Step 6: Final answer
   x = 5,228.46