Finding the Fourth Proportional to 42,087.04, 63,015.54 and 40,971.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,087.04 : 63,015.54 = 40,971.76 : x
2. Step 2: Convert to fraction form
   42,087.04/63,015.54 = 40,971.76/x
3. Step 3: Cross multiply
   42,087.04x = 63,015.54 × 40,971.76
4. Step 4: Simplify right side
   42,087.04x = 2,581,857,581.15
5. Step 5: Solve for x
   x = 2,581,857,581.15/42,087.04
6. Step 6: Final answer
   x = 61,345.67