Finding the Fourth Proportional to 81,870.18, 112,987.40 and 46,058.06

Step by Step Solution

1. Step 1: Write the proportion equation
   81,870.18 : 112,987.40 = 46,058.06 : x
2. Step 2: Convert to fraction form
   81,870.18/112,987.40 = 46,058.06/x
3. Step 3: Cross multiply
   81,870.18x = 112,987.40 × 46,058.06
4. Step 4: Simplify right side
   81,870.18x = 5,203,980,448.44
5. Step 5: Solve for x
   x = 5,203,980,448.44/81,870.18
6. Step 6: Final answer
   x = 63,563.81