Finding the Fourth Proportional to 560,667.34, 840,410.42 and 279,594.10

Step by Step Solution

1. Step 1: Write the proportion equation
   560,667.34 : 840,410.42 = 279,594.10 : x
2. Step 2: Convert to fraction form
   560,667.34/840,410.42 = 279,594.10/x
3. Step 3: Cross multiply
   560,667.34x = 840,410.42 × 279,594.10
4. Step 4: Simplify right side
   560,667.34x = 234,973,791,511.53
5. Step 5: Solve for x
   x = 234,973,791,511.53/560,667.34
6. Step 6: Final answer
   x = 419,096.63