Finding the Fourth Proportional to 432,279.69, 648,140.69 and 179,734.49

Step by Step Solution

1. Step 1: Write the proportion equation
   432,279.69 : 648,140.69 = 179,734.49 : x
2. Step 2: Convert to fraction form
   432,279.69/648,140.69 = 179,734.49/x
3. Step 3: Cross multiply
   432,279.69x = 648,140.69 × 179,734.49
4. Step 4: Simplify right side
   432,279.69x = 116,493,238,639.34
5. Step 5: Solve for x
   x = 116,493,238,639.34/432,279.69
6. Step 6: Final answer
   x = 269,485.80