Finding the Fourth Proportional to 71,449.60, 107,152.52 and 49,404.64

Step by Step Solution

1. Step 1: Write the proportion equation
   71,449.60 : 107,152.52 = 49,404.64 : x
2. Step 2: Convert to fraction form
   71,449.60/107,152.52 = 49,404.64/x
3. Step 3: Cross multiply
   71,449.60x = 107,152.52 × 49,404.64
4. Step 4: Simplify right side
   71,449.60x = 5,293,831,675.69
5. Step 5: Solve for x
   x = 5,293,831,675.69/71,449.60
6. Step 6: Final answer
   x = 74,091.83