Finding the Fourth Proportional to 117,239.58, 175,858.89 and 28,493.34

Step by Step Solution

1. Step 1: Write the proportion equation
   117,239.58 : 175,858.89 = 28,493.34 : x
2. Step 2: Convert to fraction form
   117,239.58/175,858.89 = 28,493.34/x
3. Step 3: Cross multiply
   117,239.58x = 175,858.89 × 28,493.34
4. Step 4: Simplify right side
   117,239.58x = 5,010,807,144.79
5. Step 5: Solve for x
   x = 5,010,807,144.79/117,239.58
6. Step 6: Final answer
   x = 42,739.89