Finding the Fourth Proportional to 9,726.08, 14,603.70 and 5,570.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,726.08 : 14,603.70 = 5,570.78 : x
2. Step 2: Convert to fraction form
   9,726.08/14,603.70 = 5,570.78/x
3. Step 3: Cross multiply
   9,726.08x = 14,603.70 × 5,570.78
4. Step 4: Simplify right side
   9,726.08x = 81,353,999.89
5. Step 5: Solve for x
   x = 81,353,999.89/9,726.08
6. Step 6: Final answer
   x = 8,364.52