Finding the Fourth Proportional to 124,472.61, 186,709.50 and 30,978.36

Step by Step Solution

1. Step 1: Write the proportion equation
   124,472.61 : 186,709.50 = 30,978.36 : x
2. Step 2: Convert to fraction form
   124,472.61/186,709.50 = 30,978.36/x
3. Step 3: Cross multiply
   124,472.61x = 186,709.50 × 30,978.36
4. Step 4: Simplify right side
   124,472.61x = 5,783,954,106.42
5. Step 5: Solve for x
   x = 5,783,954,106.42/124,472.61
6. Step 6: Final answer
   x = 46,467.69