Finding the Fourth Proportional to 238,876.32, 358,302.72 and 89,105.10

Step by Step Solution

1. Step 1: Write the proportion equation
   238,876.32 : 358,302.72 = 89,105.10 : x
2. Step 2: Convert to fraction form
   238,876.32/358,302.72 = 89,105.10/x
3. Step 3: Cross multiply
   238,876.32x = 358,302.72 × 89,105.10
4. Step 4: Simplify right side
   238,876.32x = 31,926,599,695.87
5. Step 5: Solve for x
   x = 31,926,599,695.87/238,876.32
6. Step 6: Final answer
   x = 133,653.26