Finding the Fourth Proportional to 238,885.32, 358,379.82 and 72,669

Step by Step Solution

1. Step 1: Write the proportion equation
   238,885.32 : 358,379.82 = 72,669 : x
2. Step 2: Convert to fraction form
   238,885.32/358,379.82 = 72,669/x
3. Step 3: Cross multiply
   238,885.32x = 358,379.82 × 72,669
4. Step 4: Simplify right side
   238,885.32x = 26,043,103,139.58
5. Step 5: Solve for x
   x = 26,043,103,139.58/238,885.32
6. Step 6: Final answer
   x = 109,019.27