Finding the Fourth Proportional to 563,443.48, 845,196 and 142,723

Step by Step Solution

1. Step 1: Write the proportion equation
   563,443.48 : 845,196 = 142,723 : x
2. Step 2: Convert to fraction form
   563,443.48/845,196 = 142,723/x
3. Step 3: Cross multiply
   563,443.48x = 845,196 × 142,723
4. Step 4: Simplify right side
   563,443.48x = 120,628,908,708
5. Step 5: Solve for x
   x = 120,628,908,708/563,443.48
6. Step 6: Final answer
   x = 214,092.30