Finding the Fourth Proportional to 132,685.56, 183,091.59 and 78,963.12

Step by Step Solution

1. Step 1: Write the proportion equation
   132,685.56 : 183,091.59 = 78,963.12 : x
2. Step 2: Convert to fraction form
   132,685.56/183,091.59 = 78,963.12/x
3. Step 3: Cross multiply
   132,685.56x = 183,091.59 × 78,963.12
4. Step 4: Simplify right side
   132,685.56x = 14,457,483,192.16
5. Step 5: Solve for x
   x = 14,457,483,192.16/132,685.56
6. Step 6: Final answer
   x = 108,960.49