Finding the Fourth Proportional to 78,938.29, 118,404.72 and 19,774.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,938.29 : 118,404.72 = 19,774.48 : x
2. Step 2: Convert to fraction form
   78,938.29/118,404.72 = 19,774.48/x
3. Step 3: Cross multiply
   78,938.29x = 118,404.72 × 19,774.48
4. Step 4: Simplify right side
   78,938.29x = 2,341,391,767.55
5. Step 5: Solve for x
   x = 2,341,391,767.55/78,938.29
6. Step 6: Final answer
   x = 29,661.04