Finding the Fourth Proportional to 132,111.37, 182,313.21 and 78,440.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,111.37 : 182,313.21 = 78,440.50 : x
2. Step 2: Convert to fraction form
   132,111.37/182,313.21 = 78,440.50/x
3. Step 3: Cross multiply
   132,111.37x = 182,313.21 × 78,440.50
4. Step 4: Simplify right side
   132,111.37x = 14,300,739,349.01
5. Step 5: Solve for x
   x = 14,300,739,349.01/132,111.37
6. Step 6: Final answer
   x = 108,247.60