Finding the Fourth Proportional to 9,973.42, 13,763.27 and 5,436.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,973.42 : 13,763.27 = 5,436.09 : x
2. Step 2: Convert to fraction form
   9,973.42/13,763.27 = 5,436.09/x
3. Step 3: Cross multiply
   9,973.42x = 13,763.27 × 5,436.09
4. Step 4: Simplify right side
   9,973.42x = 74,818,374.41
5. Step 5: Solve for x
   x = 74,818,374.41/9,973.42
6. Step 6: Final answer
   x = 7,501.78