Finding the Fourth Proportional to 117,231.84, 175,847.98 and 28,485.42

Step by Step Solution

1. Step 1: Write the proportion equation
   117,231.84 : 175,847.98 = 28,485.42 : x
2. Step 2: Convert to fraction form
   117,231.84/175,847.98 = 28,485.42/x
3. Step 3: Cross multiply
   117,231.84x = 175,847.98 × 28,485.42
4. Step 4: Simplify right side
   117,231.84x = 5,009,103,566.45
5. Step 5: Solve for x
   x = 5,009,103,566.45/117,231.84
6. Step 6: Final answer
   x = 42,728.18