Finding the Fourth Proportional to 425,963.72, 638,705.82 and 141,501.98

Step by Step Solution

1. Step 1: Write the proportion equation
   425,963.72 : 638,705.82 = 141,501.98 : x
2. Step 2: Convert to fraction form
   425,963.72/638,705.82 = 141,501.98/x
3. Step 3: Cross multiply
   425,963.72x = 638,705.82 × 141,501.98
4. Step 4: Simplify right side
   425,963.72x = 90,378,138,167.52
5. Step 5: Solve for x
   x = 90,378,138,167.52/425,963.72
6. Step 6: Final answer
   x = 212,173.32