Finding the Fourth Proportional to 223,980.96, 309,094.56 and 123,378.72

Step by Step Solution

1. Step 1: Write the proportion equation
   223,980.96 : 309,094.56 = 123,378.72 : x
2. Step 2: Convert to fraction form
   223,980.96/309,094.56 = 123,378.72/x
3. Step 3: Cross multiply
   223,980.96x = 309,094.56 × 123,378.72
4. Step 4: Simplify right side
   223,980.96x = 38,135,691,171.76
5. Step 5: Solve for x
   x = 38,135,691,171.76/223,980.96
6. Step 6: Final answer
   x = 170,263.09