Finding the Fourth Proportional to 47,100.99, 64,954.74 and 30,939.87

Step by Step Solution

1. Step 1: Write the proportion equation
   47,100.99 : 64,954.74 = 30,939.87 : x
2. Step 2: Convert to fraction form
   47,100.99/64,954.74 = 30,939.87/x
3. Step 3: Cross multiply
   47,100.99x = 64,954.74 × 30,939.87
4. Step 4: Simplify right side
   47,100.99x = 2,009,691,211.48
5. Step 5: Solve for x
   x = 2,009,691,211.48/47,100.99
6. Step 6: Final answer
   x = 42,667.71