Finding the Fourth Proportional to 356,111.02, 533,495.31 and 276,840.10

Step by Step Solution

1. Step 1: Write the proportion equation
   356,111.02 : 533,495.31 = 276,840.10 : x
2. Step 2: Convert to fraction form
   356,111.02/533,495.31 = 276,840.10/x
3. Step 3: Cross multiply
   356,111.02x = 533,495.31 × 276,840.10
4. Step 4: Simplify right side
   356,111.02x = 147,692,894,969.93
5. Step 5: Solve for x
   x = 147,692,894,969.93/356,111.02
6. Step 6: Final answer
   x = 414,738.34