Finding the Fourth Proportional to 448,156.89, 672,233.50 and 181,915.15

Step by Step Solution

1. Step 1: Write the proportion equation
   448,156.89 : 672,233.50 = 181,915.15 : x
2. Step 2: Convert to fraction form
   448,156.89/672,233.50 = 181,915.15/x
3. Step 3: Cross multiply
   448,156.89x = 672,233.50 × 181,915.15
4. Step 4: Simplify right side
   448,156.89x = 122,289,457,987.53
5. Step 5: Solve for x
   x = 122,289,457,987.53/448,156.89
6. Step 6: Final answer
   x = 272,871.98