Finding the Fourth Proportional to 563,451.94, 845,208.69 and 142,731.46

Step by Step Solution

1. Step 1: Write the proportion equation
   563,451.94 : 845,208.69 = 142,731.46 : x
2. Step 2: Convert to fraction form
   563,451.94/845,208.69 = 142,731.46/x
3. Step 3: Cross multiply
   563,451.94x = 845,208.69 × 142,731.46
4. Step 4: Simplify right side
   563,451.94x = 120,637,870,328.39
5. Step 5: Solve for x
   x = 120,637,870,328.39/563,451.94
6. Step 6: Final answer
   x = 214,104.99