Finding the Fourth Proportional to 89,667.55, 123,740.62 and 49,381.03

Step by Step Solution

1. Step 1: Write the proportion equation
   89,667.55 : 123,740.62 = 49,381.03 : x
2. Step 2: Convert to fraction form
   89,667.55/123,740.62 = 49,381.03/x
3. Step 3: Cross multiply
   89,667.55x = 123,740.62 × 49,381.03
4. Step 4: Simplify right side
   89,667.55x = 6,110,438,835.63
5. Step 5: Solve for x
   x = 6,110,438,835.63/89,667.55
6. Step 6: Final answer
   x = 68,145.49