Finding the Fourth Proportional to 7,356.78, 10,152.30 and 4,212.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,356.78 : 10,152.30 = 4,212.96 : x
2. Step 2: Convert to fraction form
   7,356.78/10,152.30 = 4,212.96/x
3. Step 3: Cross multiply
   7,356.78x = 10,152.30 × 4,212.96
4. Step 4: Simplify right side
   7,356.78x = 42,771,233.81
5. Step 5: Solve for x
   x = 42,771,233.81/7,356.78
6. Step 6: Final answer
   x = 5,813.85