Finding the Fourth Proportional to 78,741.12, 118,082.88 and 28,804.80

Step by Step Solution

1. Step 1: Write the proportion equation
   78,741.12 : 118,082.88 = 28,804.80 : x
2. Step 2: Convert to fraction form
   78,741.12/118,082.88 = 28,804.80/x
3. Step 3: Cross multiply
   78,741.12x = 118,082.88 × 28,804.80
4. Step 4: Simplify right side
   78,741.12x = 3,401,353,741.82
5. Step 5: Solve for x
   x = 3,401,353,741.82/78,741.12
6. Step 6: Final answer
   x = 43,196.66