Finding the Fourth Proportional to 81,572.34, 112,563.40 and 49,300.42

Step by Step Solution

1. Step 1: Write the proportion equation
   81,572.34 : 112,563.40 = 49,300.42 : x
2. Step 2: Convert to fraction form
   81,572.34/112,563.40 = 49,300.42/x
3. Step 3: Cross multiply
   81,572.34x = 112,563.40 × 49,300.42
4. Step 4: Simplify right side
   81,572.34x = 5,549,422,896.63
5. Step 5: Solve for x
   x = 5,549,422,896.63/81,572.34
6. Step 6: Final answer
   x = 68,030.69