Finding the Fourth Proportional to 238,915.40, 358,123.07 and 89,095.42

Step by Step Solution

1. Step 1: Write the proportion equation
   238,915.40 : 358,123.07 = 89,095.42 : x
2. Step 2: Convert to fraction form
   238,915.40/358,123.07 = 89,095.42/x
3. Step 3: Cross multiply
   238,915.40x = 358,123.07 × 89,095.42
4. Step 4: Simplify right side
   238,915.40x = 31,907,124,996.51
5. Step 5: Solve for x
   x = 31,907,124,996.51/238,915.40
6. Step 6: Final answer
   x = 133,549.89