Finding the Fourth Proportional to 81,837.55, 112,918.88 and 47,839.46

Step by Step Solution

1. Step 1: Write the proportion equation
   81,837.55 : 112,918.88 = 47,839.46 : x
2. Step 2: Convert to fraction form
   81,837.55/112,918.88 = 47,839.46/x
3. Step 3: Cross multiply
   81,837.55x = 112,918.88 × 47,839.46
4. Step 4: Simplify right side
   81,837.55x = 5,401,978,003.81
5. Step 5: Solve for x
   x = 5,401,978,003.81/81,837.55
6. Step 6: Final answer
   x = 66,008.55