Finding the Fourth Proportional to 425,484.94, 638,303.34 and 141,192.52

Step by Step Solution

1. Step 1: Write the proportion equation
   425,484.94 : 638,303.34 = 141,192.52 : x
2. Step 2: Convert to fraction form
   425,484.94/638,303.34 = 141,192.52/x
3. Step 3: Cross multiply
   425,484.94x = 638,303.34 × 141,192.52
4. Step 4: Simplify right side
   425,484.94x = 90,123,657,099.02
5. Step 5: Solve for x
   x = 90,123,657,099.02/425,484.94
6. Step 6: Final answer
   x = 211,813.98