Finding the Fourth Proportional to 9,973.86, 13,763.76 and 5,436.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,973.86 : 13,763.76 = 5,436.60 : x
2. Step 2: Convert to fraction form
   9,973.86/13,763.76 = 5,436.60/x
3. Step 3: Cross multiply
   9,973.86x = 13,763.76 × 5,436.60
4. Step 4: Simplify right side
   9,973.86x = 74,828,057.62
5. Step 5: Solve for x
   x = 74,828,057.62/9,973.86
6. Step 6: Final answer
   x = 7,502.42