Finding the Fourth Proportional to 81,732.58, 112,779 and 45,915.46

Step by Step Solution

1. Step 1: Write the proportion equation
   81,732.58 : 112,779 = 45,915.46 : x
2. Step 2: Convert to fraction form
   81,732.58/112,779 = 45,915.46/x
3. Step 3: Cross multiply
   81,732.58x = 112,779 × 45,915.46
4. Step 4: Simplify right side
   81,732.58x = 5,178,299,381.39
5. Step 5: Solve for x
   x = 5,178,299,381.39/81,732.58
6. Step 6: Final answer
   x = 63,356.61