Finding the Fourth Proportional to 78,532.47, 117,808.83 and 28,604.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,532.47 : 117,808.83 = 28,604.88 : x
2. Step 2: Convert to fraction form
   78,532.47/117,808.83 = 28,604.88/x
3. Step 3: Cross multiply
   78,532.47x = 117,808.83 × 28,604.88
4. Step 4: Simplify right side
   78,532.47x = 3,369,907,445.09
5. Step 5: Solve for x
   x = 3,369,907,445.09/78,532.47
6. Step 6: Final answer
   x = 42,911.01