Finding the Fourth Proportional to 47,019.12, 64,904.45 and 31,918.53

Step by Step Solution

1. Step 1: Write the proportion equation
   47,019.12 : 64,904.45 = 31,918.53 : x
2. Step 2: Convert to fraction form
   47,019.12/64,904.45 = 31,918.53/x
3. Step 3: Cross multiply
   47,019.12x = 64,904.45 × 31,918.53
4. Step 4: Simplify right side
   47,019.12x = 2,071,654,150.34
5. Step 5: Solve for x
   x = 2,071,654,150.34/47,019.12
6. Step 6: Final answer
   x = 44,059.83