Finding the Fourth Proportional to 238,982.40, 358,499.52 and 89,294.40

Step by Step Solution

1. Step 1: Write the proportion equation
   238,982.40 : 358,499.52 = 89,294.40 : x
2. Step 2: Convert to fraction form
   238,982.40/358,499.52 = 89,294.40/x
3. Step 3: Cross multiply
   238,982.40x = 358,499.52 × 89,294.40
4. Step 4: Simplify right side
   238,982.40x = 32,011,999,538.69
5. Step 5: Solve for x
   x = 32,011,999,538.69/238,982.40
6. Step 6: Final answer
   x = 133,951.28