Finding the Fourth Proportional to 89,580.06, 123,623.46 and 49,296.78

Step by Step Solution

1. Step 1: Write the proportion equation
   89,580.06 : 123,623.46 = 49,296.78 : x
2. Step 2: Convert to fraction form
   89,580.06/123,623.46 = 49,296.78/x
3. Step 3: Cross multiply
   89,580.06x = 123,623.46 × 49,296.78
4. Step 4: Simplify right side
   89,580.06x = 6,094,238,510.46
5. Step 5: Solve for x
   x = 6,094,238,510.46/89,580.06
6. Step 6: Final answer
   x = 68,031.19