Finding the Fourth Proportional to 303,458.72, 418,914.76 and 176,109.72

Step by Step Solution

1. Step 1: Write the proportion equation
   303,458.72 : 418,914.76 = 176,109.72 : x
2. Step 2: Convert to fraction form
   303,458.72/418,914.76 = 176,109.72/x
3. Step 3: Cross multiply
   303,458.72x = 418,914.76 × 176,109.72
4. Step 4: Simplify right side
   303,458.72x = 73,774,961,087.47
5. Step 5: Solve for x
   x = 73,774,961,087.47/303,458.72
6. Step 6: Final answer
   x = 243,113.66