Finding the Fourth Proportional to 238,826.52, 358,263.12 and 89,031.72

Step by Step Solution

1. Step 1: Write the proportion equation
   238,826.52 : 358,263.12 = 89,031.72 : x
2. Step 2: Convert to fraction form
   238,826.52/358,263.12 = 89,031.72/x
3. Step 3: Cross multiply
   238,826.52x = 358,263.12 × 89,031.72
4. Step 4: Simplify right side
   238,826.52x = 31,896,781,786.17
5. Step 5: Solve for x
   x = 31,896,781,786.17/238,826.52
6. Step 6: Final answer
   x = 133,556.28