Finding the Fourth Proportional to 78,298.24, 117,417.20 and 28,363.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,298.24 : 117,417.20 = 28,363.52 : x
2. Step 2: Convert to fraction form
   78,298.24/117,417.20 = 28,363.52/x
3. Step 3: Cross multiply
   78,298.24x = 117,417.20 × 28,363.52
4. Step 4: Simplify right side
   78,298.24x = 3,330,365,100.54
5. Step 5: Solve for x
   x = 3,330,365,100.54/78,298.24
6. Step 6: Final answer
   x = 42,534.35