Finding the Fourth Proportional to 30,816.39, 42,552.53 and 19,505.83

Step by Step Solution

1. Step 1: Write the proportion equation
   30,816.39 : 42,552.53 = 19,505.83 : x
2. Step 2: Convert to fraction form
   30,816.39/42,552.53 = 19,505.83/x
3. Step 3: Cross multiply
   30,816.39x = 42,552.53 × 19,505.83
4. Step 4: Simplify right side
   30,816.39x = 830,022,416.25
5. Step 5: Solve for x
   x = 830,022,416.25/30,816.39
6. Step 6: Final answer
   x = 26,934.45