Finding the Fourth Proportional to 81,401.98, 112,338.20 and 47,404.99

Step by Step Solution

1. Step 1: Write the proportion equation
   81,401.98 : 112,338.20 = 47,404.99 : x
2. Step 2: Convert to fraction form
   81,401.98/112,338.20 = 47,404.99/x
3. Step 3: Cross multiply
   81,401.98x = 112,338.20 × 47,404.99
4. Step 4: Simplify right side
   81,401.98x = 5,325,390,448.90
5. Step 5: Solve for x
   x = 5,325,390,448.90/81,401.98
6. Step 6: Final answer
   x = 65,420.90