Finding the Fourth Proportional to 230,443.56, 317,978.13 and 133,643.28

Step by Step Solution

1. Step 1: Write the proportion equation
   230,443.56 : 317,978.13 = 133,643.28 : x
2. Step 2: Convert to fraction form
   230,443.56/317,978.13 = 133,643.28/x
3. Step 3: Cross multiply
   230,443.56x = 317,978.13 × 133,643.28
4. Step 4: Simplify right side
   230,443.56x = 42,495,640,261.47
5. Step 5: Solve for x
   x = 42,495,640,261.47/230,443.56
6. Step 6: Final answer
   x = 184,408.02