Finding the Fourth Proportional to 78,861.50, 118,291.59 and 19,696.77

Step by Step Solution

1. Step 1: Write the proportion equation
   78,861.50 : 118,291.59 = 19,696.77 : x
2. Step 2: Convert to fraction form
   78,861.50/118,291.59 = 19,696.77/x
3. Step 3: Cross multiply
   78,861.50x = 118,291.59 × 19,696.77
4. Step 4: Simplify right side
   78,861.50x = 2,329,962,241.16
5. Step 5: Solve for x
   x = 2,329,962,241.16/78,861.50
6. Step 6: Final answer
   x = 29,544.99