Finding the Fourth Proportional to 8,897.34, 12,278.54 and 5,759.00

Step by Step Solution

1. Step 1: Write the proportion equation
   8,897.34 : 12,278.54 = 5,759.00 : x
2. Step 2: Convert to fraction form
   8,897.34/12,278.54 = 5,759.00/x
3. Step 3: Cross multiply
   8,897.34x = 12,278.54 × 5,759.00
4. Step 4: Simplify right side
   8,897.34x = 70,712,078.51
5. Step 5: Solve for x
   x = 70,712,078.51/8,897.34
6. Step 6: Final answer
   x = 7,947.55