Finding the Fourth Proportional to 9,848.86, 13,590.99 and 5,372.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,848.86 : 13,590.99 = 5,372.50 : x
2. Step 2: Convert to fraction form
   9,848.86/13,590.99 = 5,372.50/x
3. Step 3: Cross multiply
   9,848.86x = 13,590.99 × 5,372.50
4. Step 4: Simplify right side
   9,848.86x = 73,017,593.78
5. Step 5: Solve for x
   x = 73,017,593.78/9,848.86
6. Step 6: Final answer
   x = 7,413.81