Finding the Fourth Proportional to 89,341.50, 123,290.40 and 49,054.91

Step by Step Solution

1. Step 1: Write the proportion equation
   89,341.50 : 123,290.40 = 49,054.91 : x
2. Step 2: Convert to fraction form
   89,341.50/123,290.40 = 49,054.91/x
3. Step 3: Cross multiply
   89,341.50x = 123,290.40 × 49,054.91
4. Step 4: Simplify right side
   89,341.50x = 6,047,998,859.41
5. Step 5: Solve for x
   x = 6,047,998,859.41/89,341.50
6. Step 6: Final answer
   x = 67,695.29