Finding the Fourth Proportional to 276,123.06, 414,492.05 and 142,967.57

Step by Step Solution

1. Step 1: Write the proportion equation
   276,123.06 : 414,492.05 = 142,967.57 : x
2. Step 2: Convert to fraction form
   276,123.06/414,492.05 = 142,967.57/x
3. Step 3: Cross multiply
   276,123.06x = 414,492.05 × 142,967.57
4. Step 4: Simplify right side
   276,123.06x = 59,258,919,457.78
5. Step 5: Solve for x
   x = 59,258,919,457.78/276,123.06
6. Step 6: Final answer
   x = 214,610.54