Finding the Fourth Proportional to 132,783.05, 183,238.22 and 72,354.12

Step by Step Solution

1. Step 1: Write the proportion equation
   132,783.05 : 183,238.22 = 72,354.12 : x
2. Step 2: Convert to fraction form
   132,783.05/183,238.22 = 72,354.12/x
3. Step 3: Cross multiply
   132,783.05x = 183,238.22 × 72,354.12
4. Step 4: Simplify right side
   132,783.05x = 13,258,039,796.70
5. Step 5: Solve for x
   x = 13,258,039,796.70/132,783.05
6. Step 6: Final answer
   x = 99,847.38