Finding the Fourth Proportional to 78,770.78, 118,155.56 and 19,606.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,770.78 : 118,155.56 = 19,606.06 : x
2. Step 2: Convert to fraction form
   78,770.78/118,155.56 = 19,606.06/x
3. Step 3: Cross multiply
   78,770.78x = 118,155.56 × 19,606.06
4. Step 4: Simplify right side
   78,770.78x = 2,316,564,407.92
5. Step 5: Solve for x
   x = 2,316,564,407.92/78,770.78
6. Step 6: Final answer
   x = 29,408.93