Finding the Fourth Proportional to 50,969.70, 70,405.47 and 42,499.53

Step by Step Solution

1. Step 1: Write the proportion equation
   50,969.70 : 70,405.47 = 42,499.53 : x
2. Step 2: Convert to fraction form
   50,969.70/70,405.47 = 42,499.53/x
3. Step 3: Cross multiply
   50,969.70x = 70,405.47 × 42,499.53
4. Step 4: Simplify right side
   50,969.70x = 2,992,199,384.43
5. Step 5: Solve for x
   x = 2,992,199,384.43/50,969.70
6. Step 6: Final answer
   x = 58,705.45