Finding the Fourth Proportional to 78,877.82, 118,317.06 and 19,713.57

Step by Step Solution

1. Step 1: Write the proportion equation
   78,877.82 : 118,317.06 = 19,713.57 : x
2. Step 2: Convert to fraction form
   78,877.82/118,317.06 = 19,713.57/x
3. Step 3: Cross multiply
   78,877.82x = 118,317.06 × 19,713.57
4. Step 4: Simplify right side
   78,877.82x = 2,332,451,644.50
5. Step 5: Solve for x
   x = 2,332,451,644.50/78,877.82
6. Step 6: Final answer
   x = 29,570.44