Finding the Fourth Proportional to 78,553.82, 117,760.46 and 28,598.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,553.82 : 117,760.46 = 28,598.72 : x
2. Step 2: Convert to fraction form
   78,553.82/117,760.46 = 28,598.72/x
3. Step 3: Cross multiply
   78,553.82x = 117,760.46 × 28,598.72
4. Step 4: Simplify right side
   78,553.82x = 3,367,798,422.61
5. Step 5: Solve for x
   x = 3,367,798,422.61/78,553.82
6. Step 6: Final answer
   x = 42,872.50