Finding the Fourth Proportional to 70,411.95, 105,618.08 and 17,103.69

Step by Step Solution

1. Step 1: Write the proportion equation
   70,411.95 : 105,618.08 = 17,103.69 : x
2. Step 2: Convert to fraction form
   70,411.95/105,618.08 = 17,103.69/x
3. Step 3: Cross multiply
   70,411.95x = 105,618.08 × 17,103.69
4. Step 4: Simplify right side
   70,411.95x = 1,806,458,898.72
5. Step 5: Solve for x
   x = 1,806,458,898.72/70,411.95
6. Step 6: Final answer
   x = 25,655.57