Finding the Fourth Proportional to 47,078.06, 64,889.64 and 45,831.47

Step by Step Solution

1. Step 1: Write the proportion equation
   47,078.06 : 64,889.64 = 45,831.47 : x
2. Step 2: Convert to fraction form
   47,078.06/64,889.64 = 45,831.47/x
3. Step 3: Cross multiply
   47,078.06x = 64,889.64 × 45,831.47
4. Step 4: Simplify right side
   47,078.06x = 2,973,987,264.52
5. Step 5: Solve for x
   x = 2,973,987,264.52/47,078.06
6. Step 6: Final answer
   x = 63,171.41