Finding the Fourth Proportional to 17,152.56, 23,670.36 and 10,870.08

Step by Step Solution

1. Step 1: Write the proportion equation
   17,152.56 : 23,670.36 = 10,870.08 : x
2. Step 2: Convert to fraction form
   17,152.56/23,670.36 = 10,870.08/x
3. Step 3: Cross multiply
   17,152.56x = 23,670.36 × 10,870.08
4. Step 4: Simplify right side
   17,152.56x = 257,298,706.83
5. Step 5: Solve for x
   x = 257,298,706.83/17,152.56
6. Step 6: Final answer
   x = 15,000.60