Finding the Fourth Proportional to 117,019.27, 175,422.27 and 42,121.81

Step by Step Solution

1. Step 1: Write the proportion equation
   117,019.27 : 175,422.27 = 42,121.81 : x
2. Step 2: Convert to fraction form
   117,019.27/175,422.27 = 42,121.81/x
3. Step 3: Cross multiply
   117,019.27x = 175,422.27 × 42,121.81
4. Step 4: Simplify right side
   117,019.27x = 7,389,102,649.60
5. Step 5: Solve for x
   x = 7,389,102,649.60/117,019.27
6. Step 6: Final answer
   x = 63,144.33