Finding the Fourth Proportional to 238,729, 329,448.72 and 131,300.80

Step by Step Solution

1. Step 1: Write the proportion equation
   238,729 : 329,448.72 = 131,300.80 : x
2. Step 2: Convert to fraction form
   238,729/329,448.72 = 131,300.80/x
3. Step 3: Cross multiply
   238,729x = 329,448.72 × 131,300.80
4. Step 4: Simplify right side
   238,729x = 43,256,880,494.98
5. Step 5: Solve for x
   x = 43,256,880,494.98/238,729
6. Step 6: Final answer
   x = 181,196.59