Finding the Fourth Proportional to 133,561.97, 184,315.82 and 72,308.81

Step by Step Solution

1. Step 1: Write the proportion equation
   133,561.97 : 184,315.82 = 72,308.81 : x
2. Step 2: Convert to fraction form
   133,561.97/184,315.82 = 72,308.81/x
3. Step 3: Cross multiply
   133,561.97x = 184,315.82 × 72,308.81
4. Step 4: Simplify right side
   133,561.97x = 13,327,657,816.47
5. Step 5: Solve for x
   x = 13,327,657,816.47/133,561.97
6. Step 6: Final answer
   x = 99,786.32