Finding the Fourth Proportional to 185,697.63, 256,268.61 and 105,123.69

Step by Step Solution

1. Step 1: Write the proportion equation
   185,697.63 : 256,268.61 = 105,123.69 : x
2. Step 2: Convert to fraction form
   185,697.63/256,268.61 = 105,123.69/x
3. Step 3: Cross multiply
   185,697.63x = 256,268.61 × 105,123.69
4. Step 4: Simplify right side
   185,697.63x = 26,939,901,914.37
5. Step 5: Solve for x
   x = 26,939,901,914.37/185,697.63
6. Step 6: Final answer
   x = 145,074.02