Finding the Fourth Proportional to 30,760.06, 42,448.89 and 16,612.91

Step by Step Solution

1. Step 1: Write the proportion equation
   30,760.06 : 42,448.89 = 16,612.91 : x
2. Step 2: Convert to fraction form
   30,760.06/42,448.89 = 16,612.91/x
3. Step 3: Cross multiply
   30,760.06x = 42,448.89 × 16,612.91
4. Step 4: Simplify right side
   30,760.06x = 705,199,589.17
5. Step 5: Solve for x
   x = 705,199,589.17/30,760.06
6. Step 6: Final answer
   x = 22,925.82