Finding the Fourth Proportional to 563,498.72, 845,297.28 and 142,774.59

Step by Step Solution

1. Step 1: Write the proportion equation
   563,498.72 : 845,297.28 = 142,774.59 : x
2. Step 2: Convert to fraction form
   563,498.72/845,297.28 = 142,774.59/x
3. Step 3: Cross multiply
   563,498.72x = 845,297.28 × 142,774.59
4. Step 4: Simplify right side
   563,498.72x = 120,686,972,580.12
5. Step 5: Solve for x
   x = 120,686,972,580.12/563,498.72
6. Step 6: Final answer
   x = 214,174.35