Finding the Fourth Proportional to 456,071.82, 629,374.92 and 252,128.04

Step by Step Solution

1. Step 1: Write the proportion equation
   456,071.82 : 629,374.92 = 252,128.04 : x
2. Step 2: Convert to fraction form
   456,071.82/629,374.92 = 252,128.04/x
3. Step 3: Cross multiply
   456,071.82x = 629,374.92 × 252,128.04
4. Step 4: Simplify right side
   456,071.82x = 158,683,065,004.76
5. Step 5: Solve for x
   x = 158,683,065,004.76/456,071.82
6. Step 6: Final answer
   x = 347,934.38