Finding the Fourth Proportional to 81,748.89, 112,816.32 and 45,938.18

Step by Step Solution

1. Step 1: Write the proportion equation
   81,748.89 : 112,816.32 = 45,938.18 : x
2. Step 2: Convert to fraction form
   81,748.89/112,816.32 = 45,938.18/x
3. Step 3: Cross multiply
   81,748.89x = 112,816.32 × 45,938.18
4. Step 4: Simplify right side
   81,748.89x = 5,182,576,415.10
5. Step 5: Solve for x
   x = 5,182,576,415.10/81,748.89
6. Step 6: Final answer
   x = 63,396.29