Finding the Fourth Proportional to 10,361.47, 15,546.79 and 5,429.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,361.47 : 15,546.79 = 5,429.93 : x
2. Step 2: Convert to fraction form
   10,361.47/15,546.79 = 5,429.93/x
3. Step 3: Cross multiply
   10,361.47x = 15,546.79 × 5,429.93
4. Step 4: Simplify right side
   10,361.47x = 84,417,981.42
5. Step 5: Solve for x
   x = 84,417,981.42/10,361.47
6. Step 6: Final answer
   x = 8,147.30