Finding the Fourth Proportional to 52,781.89, 79,161.89 and 19,479.19

Step by Step Solution

1. Step 1: Write the proportion equation
   52,781.89 : 79,161.89 = 19,479.19 : x
2. Step 2: Convert to fraction form
   52,781.89/79,161.89 = 19,479.19/x
3. Step 3: Cross multiply
   52,781.89x = 79,161.89 × 19,479.19
4. Step 4: Simplify right side
   52,781.89x = 1,542,009,496.07
5. Step 5: Solve for x
   x = 1,542,009,496.07/52,781.89
6. Step 6: Final answer
   x = 29,214.75