Finding the Fourth Proportional to 81,383.94, 112,308.53 and 45,573.64

Step by Step Solution

1. Step 1: Write the proportion equation
   81,383.94 : 112,308.53 = 45,573.64 : x
2. Step 2: Convert to fraction form
   81,383.94/112,308.53 = 45,573.64/x
3. Step 3: Cross multiply
   81,383.94x = 112,308.53 × 45,573.64
4. Step 4: Simplify right side
   81,383.94x = 5,118,308,006.51
5. Step 5: Solve for x
   x = 5,118,308,006.51/81,383.94
6. Step 6: Final answer
   x = 62,890.88