Finding the Fourth Proportional to 81,156.51, 111,993.88 and 45,346.81

Step by Step Solution

1. Step 1: Write the proportion equation
   81,156.51 : 111,993.88 = 45,346.81 : x
2. Step 2: Convert to fraction form
   81,156.51/111,993.88 = 45,346.81/x
3. Step 3: Cross multiply
   81,156.51x = 111,993.88 × 45,346.81
4. Step 4: Simplify right side
   81,156.51x = 5,078,565,197.52
5. Step 5: Solve for x
   x = 5,078,565,197.52/81,156.51
6. Step 6: Final answer
   x = 62,577.42