Finding the Fourth Proportional to 71,870.48, 107,817.24 and 30,323.60

Step by Step Solution

1. Step 1: Write the proportion equation
   71,870.48 : 107,817.24 = 30,323.60 : x
2. Step 2: Convert to fraction form
   71,870.48/107,817.24 = 30,323.60/x
3. Step 3: Cross multiply
   71,870.48x = 107,817.24 × 30,323.60
4. Step 4: Simplify right side
   71,870.48x = 3,269,406,858.86
5. Step 5: Solve for x
   x = 3,269,406,858.86/71,870.48
6. Step 6: Final answer
   x = 45,490.26