Finding the Fourth Proportional to 238,882.77, 358,312.20 and 89,111.34

Step by Step Solution

1. Step 1: Write the proportion equation
   238,882.77 : 358,312.20 = 89,111.34 : x
2. Step 2: Convert to fraction form
   238,882.77/358,312.20 = 89,111.34/x
3. Step 3: Cross multiply
   238,882.77x = 358,312.20 × 89,111.34
4. Step 4: Simplify right side
   238,882.77x = 31,929,680,280.35
5. Step 5: Solve for x
   x = 31,929,680,280.35/238,882.77
6. Step 6: Final answer
   x = 133,662.55