Finding the Fourth Proportional to 13,853.38, 19,117.56 and 7,565.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,853.38 : 19,117.56 = 7,565.76 : x
2. Step 2: Convert to fraction form
   13,853.38/19,117.56 = 7,565.76/x
3. Step 3: Cross multiply
   13,853.38x = 19,117.56 × 7,565.76
4. Step 4: Simplify right side
   13,853.38x = 144,638,870.75
5. Step 5: Solve for x
   x = 144,638,870.75/13,853.38
6. Step 6: Final answer
   x = 10,440.69