Finding the Fourth Proportional to 9,848.30, 13,590.70 and 5,372.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,848.30 : 13,590.70 = 5,372.15 : x
2. Step 2: Convert to fraction form
   9,848.30/13,590.70 = 5,372.15/x
3. Step 3: Cross multiply
   9,848.30x = 13,590.70 × 5,372.15
4. Step 4: Simplify right side
   9,848.30x = 73,011,274.07
5. Step 5: Solve for x
   x = 73,011,274.07/9,848.30
6. Step 6: Final answer
   x = 7,413.59