Finding the Fourth Proportional to 12,892.00, 19,339.85 and 4,889.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,892.00 : 19,339.85 = 4,889.71 : x
2. Step 2: Convert to fraction form
   12,892.00/19,339.85 = 4,889.71/x
3. Step 3: Cross multiply
   12,892.00x = 19,339.85 × 4,889.71
4. Step 4: Simplify right side
   12,892.00x = 94,566,194.31
5. Step 5: Solve for x
   x = 94,566,194.31/12,892.00
6. Step 6: Final answer
   x = 7,335.26