Finding the Fourth Proportional to 89,316.84, 123,256.74 and 49,031.28

Step by Step Solution

1. Step 1: Write the proportion equation
   89,316.84 : 123,256.74 = 49,031.28 : x
2. Step 2: Convert to fraction form
   89,316.84/123,256.74 = 49,031.28/x
3. Step 3: Cross multiply
   89,316.84x = 123,256.74 × 49,031.28
4. Step 4: Simplify right side
   89,316.84x = 6,043,435,730.83
5. Step 5: Solve for x
   x = 6,043,435,730.83/89,316.84
6. Step 6: Final answer
   x = 67,662.89