Finding the Fourth Proportional to 11,870.34, 17,779.38 and 10,270.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870.34 : 17,779.38 = 10,270.18 : x
2. Step 2: Convert to fraction form
   11,870.34/17,779.38 = 10,270.18/x
3. Step 3: Cross multiply
   11,870.34x = 17,779.38 × 10,270.18
4. Step 4: Simplify right side
   11,870.34x = 182,597,432.89
5. Step 5: Solve for x
   x = 182,597,432.89/11,870.34
6. Step 6: Final answer
   x = 15,382.66