Finding the Fourth Proportional to 30,916.51, 42,665.03 and 16,769.35

Step by Step Solution

1. Step 1: Write the proportion equation
   30,916.51 : 42,665.03 = 16,769.35 : x
2. Step 2: Convert to fraction form
   30,916.51/42,665.03 = 16,769.35/x
3. Step 3: Cross multiply
   30,916.51x = 42,665.03 × 16,769.35
4. Step 4: Simplify right side
   30,916.51x = 715,464,820.83
5. Step 5: Solve for x
   x = 715,464,820.83/30,916.51
6. Step 6: Final answer
   x = 23,141.84