Finding the Fourth Proportional to 401,116.54, 601,519.29 and 214,025.98

Step by Step Solution

1. Step 1: Write the proportion equation
   401,116.54 : 601,519.29 = 214,025.98 : x
2. Step 2: Convert to fraction form
   401,116.54/601,519.29 = 214,025.98/x
3. Step 3: Cross multiply
   401,116.54x = 601,519.29 × 214,025.98
4. Step 4: Simplify right side
   401,116.54x = 128,740,755,531.15
5. Step 5: Solve for x
   x = 128,740,755,531.15/401,116.54
6. Step 6: Final answer
   x = 320,955.99