Finding the Fourth Proportional to 81,012.24, 111,799.56 and 47,018.16

Step by Step Solution

1. Step 1: Write the proportion equation
   81,012.24 : 111,799.56 = 47,018.16 : x
2. Step 2: Convert to fraction form
   81,012.24/111,799.56 = 47,018.16/x
3. Step 3: Cross multiply
   81,012.24x = 111,799.56 × 47,018.16
4. Step 4: Simplify right side
   81,012.24x = 5,256,609,600.01
5. Step 5: Solve for x
   x = 5,256,609,600.01/81,012.24
6. Step 6: Final answer
   x = 64,886.61