Finding the Fourth Proportional to 285,483.83, 427,916.72 and 185,715.32

Step by Step Solution

1. Step 1: Write the proportion equation
   285,483.83 : 427,916.72 = 185,715.32 : x
2. Step 2: Convert to fraction form
   285,483.83/427,916.72 = 185,715.32/x
3. Step 3: Cross multiply
   285,483.83x = 427,916.72 × 185,715.32
4. Step 4: Simplify right side
   285,483.83x = 79,470,688,912.86
5. Step 5: Solve for x
   x = 79,470,688,912.86/285,483.83
6. Step 6: Final answer
   x = 278,371.95