Finding the Fourth Proportional to 238,498.98, 329,056.74 and 142,970.82

Step by Step Solution

1. Step 1: Write the proportion equation
   238,498.98 : 329,056.74 = 142,970.82 : x
2. Step 2: Convert to fraction form
   238,498.98/329,056.74 = 142,970.82/x
3. Step 3: Cross multiply
   238,498.98x = 329,056.74 × 142,970.82
4. Step 4: Simplify right side
   238,498.98x = 47,045,511,944.33
5. Step 5: Solve for x
   x = 47,045,511,944.33/238,498.98
6. Step 6: Final answer
   x = 197,256.66