Finding the Fourth Proportional to 78,741.86, 118,078.13 and 28,808.99

Step by Step Solution

1. Step 1: Write the proportion equation
   78,741.86 : 118,078.13 = 28,808.99 : x
2. Step 2: Convert to fraction form
   78,741.86/118,078.13 = 28,808.99/x
3. Step 3: Cross multiply
   78,741.86x = 118,078.13 × 28,808.99
4. Step 4: Simplify right side
   78,741.86x = 3,401,711,522.34
5. Step 5: Solve for x
   x = 3,401,711,522.34/78,741.86
6. Step 6: Final answer
   x = 43,200.80