Finding the Fourth Proportional to 81,643.56, 112,659.39 and 45,837.51

Step by Step Solution

1. Step 1: Write the proportion equation
   81,643.56 : 112,659.39 = 45,837.51 : x
2. Step 2: Convert to fraction form
   81,643.56/112,659.39 = 45,837.51/x
3. Step 3: Cross multiply
   81,643.56x = 112,659.39 × 45,837.51
4. Step 4: Simplify right side
   81,643.56x = 5,164,025,915.72
5. Step 5: Solve for x
   x = 5,164,025,915.72/81,643.56
6. Step 6: Final answer
   x = 63,250.87