Finding the Fourth Proportional to 42,993.73, 64,054.74 and 40,876.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,993.73 : 64,054.74 = 40,876.32 : x
2. Step 2: Convert to fraction form
   42,993.73/64,054.74 = 40,876.32/x
3. Step 3: Cross multiply
   42,993.73x = 64,054.74 × 40,876.32
4. Step 4: Simplify right side
   42,993.73x = 2,618,322,049.76
5. Step 5: Solve for x
   x = 2,618,322,049.76/42,993.73
6. Step 6: Final answer
   x = 60,900.09