Finding the Fourth Proportional to 30,784.87, 42,483.32 and 16,637.68

Step by Step Solution

1. Step 1: Write the proportion equation
   30,784.87 : 42,483.32 = 16,637.68 : x
2. Step 2: Convert to fraction form
   30,784.87/42,483.32 = 16,637.68/x
3. Step 3: Cross multiply
   30,784.87x = 42,483.32 × 16,637.68
4. Step 4: Simplify right side
   30,784.87x = 706,823,883.50
5. Step 5: Solve for x
   x = 706,823,883.50/30,784.87
6. Step 6: Final answer
   x = 22,960.11