Finding the Fourth Proportional to 78,225.34, 117,336.81 and 19,061.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,225.34 : 117,336.81 = 19,061.10 : x
2. Step 2: Convert to fraction form
   78,225.34/117,336.81 = 19,061.10/x
3. Step 3: Cross multiply
   78,225.34x = 117,336.81 × 19,061.10
4. Step 4: Simplify right side
   78,225.34x = 2,236,568,669.09
5. Step 5: Solve for x
   x = 2,236,568,669.09/78,225.34
6. Step 6: Final answer
   x = 28,591.36