Finding the Fourth Proportional to 72,683.32, 109,067.28 and 30,560.35

Step by Step Solution

1. Step 1: Write the proportion equation
   72,683.32 : 109,067.28 = 30,560.35 : x
2. Step 2: Convert to fraction form
   72,683.32/109,067.28 = 30,560.35/x
3. Step 3: Cross multiply
   72,683.32x = 109,067.28 × 30,560.35
4. Step 4: Simplify right side
   72,683.32x = 3,333,133,863.08
5. Step 5: Solve for x
   x = 3,333,133,863.08/72,683.32
6. Step 6: Final answer
   x = 45,858.31