Finding the Fourth Proportional to 30,784.86, 42,483.09 and 16,637.70

Step by Step Solution

1. Step 1: Write the proportion equation
   30,784.86 : 42,483.09 = 16,637.70 : x
2. Step 2: Convert to fraction form
   30,784.86/42,483.09 = 16,637.70/x
3. Step 3: Cross multiply
   30,784.86x = 42,483.09 × 16,637.70
4. Step 4: Simplify right side
   30,784.86x = 706,820,906.49
5. Step 5: Solve for x
   x = 706,820,906.49/30,784.86
6. Step 6: Final answer
   x = 22,960.02