Finding the Fourth Proportional to 46,475.19, 64,155.41 and 31,388.31

Step by Step Solution

1. Step 1: Write the proportion equation
   46,475.19 : 64,155.41 = 31,388.31 : x
2. Step 2: Convert to fraction form
   46,475.19/64,155.41 = 31,388.31/x
3. Step 3: Cross multiply
   46,475.19x = 64,155.41 × 31,388.31
4. Step 4: Simplify right side
   46,475.19x = 2,013,729,499.73
5. Step 5: Solve for x
   x = 2,013,729,499.73/46,475.19
6. Step 6: Final answer
   x = 43,329.13