Finding the Fourth Proportional to 70,503.17, 105,749.15 and 28,353.54

Step by Step Solution

1. Step 1: Write the proportion equation
   70,503.17 : 105,749.15 = 28,353.54 : x
2. Step 2: Convert to fraction form
   70,503.17/105,749.15 = 28,353.54/x
3. Step 3: Cross multiply
   70,503.17x = 105,749.15 × 28,353.54
4. Step 4: Simplify right side
   70,503.17x = 2,998,362,825.37
5. Step 5: Solve for x
   x = 2,998,362,825.37/70,503.17
6. Step 6: Final answer
   x = 42,528.06