Finding the Fourth Proportional to 30,894.72, 42,612.18 and 19,566.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,894.72 : 42,612.18 = 19,566.06 : x
2. Step 2: Convert to fraction form
   30,894.72/42,612.18 = 19,566.06/x
3. Step 3: Cross multiply
   30,894.72x = 42,612.18 × 19,566.06
4. Step 4: Simplify right side
   30,894.72x = 833,752,470.61
5. Step 5: Solve for x
   x = 833,752,470.61/30,894.72
6. Step 6: Final answer
   x = 26,986.89