Finding the Fourth Proportional to 542,196.45, 748,235.34 and 300,483

Step by Step Solution

1. Step 1: Write the proportion equation
   542,196.45 : 748,235.34 = 300,483 : x
2. Step 2: Convert to fraction form
   542,196.45/748,235.34 = 300,483/x
3. Step 3: Cross multiply
   542,196.45x = 748,235.34 × 300,483
4. Step 4: Simplify right side
   542,196.45x = 224,831,999,669.22
5. Step 5: Solve for x
   x = 224,831,999,669.22/542,196.45
6. Step 6: Final answer
   x = 414,668.89