Finding the Fourth Proportional to 276,431.31, 381,592.91 and 185,839.82

Step by Step Solution

1. Step 1: Write the proportion equation
   276,431.31 : 381,592.91 = 185,839.82 : x
2. Step 2: Convert to fraction form
   276,431.31/381,592.91 = 185,839.82/x
3. Step 3: Cross multiply
   276,431.31x = 381,592.91 × 185,839.82
4. Step 4: Simplify right side
   276,431.31x = 70,915,154,870.51
5. Step 5: Solve for x
   x = 70,915,154,870.51/276,431.31
6. Step 6: Final answer
   x = 256,538.08