Finding the Fourth Proportional to 117,238.81, 175,855.77 and 28,492.78

Step by Step Solution

1. Step 1: Write the proportion equation
   117,238.81 : 175,855.77 = 28,492.78 : x
2. Step 2: Convert to fraction form
   117,238.81/175,855.77 = 28,492.78/x
3. Step 3: Cross multiply
   117,238.81x = 175,855.77 × 28,492.78
4. Step 4: Simplify right side
   117,238.81x = 5,010,619,766.34
5. Step 5: Solve for x
   x = 5,010,619,766.34/117,238.81
6. Step 6: Final answer
   x = 42,738.58