Finding the Fourth Proportional to 70,145.48, 105,268.56 and 47,599.94

Step by Step Solution

1. Step 1: Write the proportion equation
   70,145.48 : 105,268.56 = 47,599.94 : x
2. Step 2: Convert to fraction form
   70,145.48/105,268.56 = 47,599.94/x
3. Step 3: Cross multiply
   70,145.48x = 105,268.56 × 47,599.94
4. Step 4: Simplify right side
   70,145.48x = 5,010,777,139.89
5. Step 5: Solve for x
   x = 5,010,777,139.89/70,145.48
6. Step 6: Final answer
   x = 71,434.07