Finding the Fourth Proportional to 78,308.58, 117,461.82 and 19,144.76

Step by Step Solution

1. Step 1: Write the proportion equation
   78,308.58 : 117,461.82 = 19,144.76 : x
2. Step 2: Convert to fraction form
   78,308.58/117,461.82 = 19,144.76/x
3. Step 3: Cross multiply
   78,308.58x = 117,461.82 × 19,144.76
4. Step 4: Simplify right side
   78,308.58x = 2,248,778,353.06
5. Step 5: Solve for x
   x = 2,248,778,353.06/78,308.58
6. Step 6: Final answer
   x = 28,716.88