Finding the Fourth Proportional to 456,004.82, 680,667.94 and 402,137.59

Step by Step Solution

1. Step 1: Write the proportion equation
   456,004.82 : 680,667.94 = 402,137.59 : x
2. Step 2: Convert to fraction form
   456,004.82/680,667.94 = 402,137.59/x
3. Step 3: Cross multiply
   456,004.82x = 680,667.94 × 402,137.59
4. Step 4: Simplify right side
   456,004.82x = 273,722,164,981.87
5. Step 5: Solve for x
   x = 273,722,164,981.87/456,004.82
6. Step 6: Final answer
   x = 600,261.56