Finding the Fourth Proportional to 30,773.34, 42,453.90 and 19,434.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,773.34 : 42,453.90 = 19,434.96 : x
2. Step 2: Convert to fraction form
   30,773.34/42,453.90 = 19,434.96/x
3. Step 3: Cross multiply
   30,773.34x = 42,453.90 × 19,434.96
4. Step 4: Simplify right side
   30,773.34x = 825,089,848.34
5. Step 5: Solve for x
   x = 825,089,848.34/30,773.34
6. Step 6: Final answer
   x = 26,811.84