Finding the Fourth Proportional to 17,856.63, 26,784.81 and 5,376.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,856.63 : 26,784.81 = 5,376.15 : x
2. Step 2: Convert to fraction form
   17,856.63/26,784.81 = 5,376.15/x
3. Step 3: Cross multiply
   17,856.63x = 26,784.81 × 5,376.15
4. Step 4: Simplify right side
   17,856.63x = 143,999,156.28
5. Step 5: Solve for x
   x = 143,999,156.28/17,856.63
6. Step 6: Final answer
   x = 8,064.18