Finding the Fourth Proportional to 81,836.98, 112,950.56 and 51,224.28

Step by Step Solution

1. Step 1: Write the proportion equation
   81,836.98 : 112,950.56 = 51,224.28 : x
2. Step 2: Convert to fraction form
   81,836.98/112,950.56 = 51,224.28/x
3. Step 3: Cross multiply
   81,836.98x = 112,950.56 × 51,224.28
4. Step 4: Simplify right side
   81,836.98x = 5,785,811,111.60
5. Step 5: Solve for x
   x = 5,785,811,111.60/81,836.98
6. Step 6: Final answer
   x = 70,699.23