Finding the Fourth Proportional to 131,652, 181,684.32 and 72,036

Step by Step Solution

1. Step 1: Write the proportion equation
   131,652 : 181,684.32 = 72,036 : x
2. Step 2: Convert to fraction form
   131,652/181,684.32 = 72,036/x
3. Step 3: Cross multiply
   131,652x = 181,684.32 × 72,036
4. Step 4: Simplify right side
   131,652x = 13,087,811,675.52
5. Step 5: Solve for x
   x = 13,087,811,675.52/131,652
6. Step 6: Final answer
   x = 99,412.18