Finding the Fourth Proportional to 78,056.91, 107,718.53 and 42,247.22

Step by Step Solution

1. Step 1: Write the proportion equation
   78,056.91 : 107,718.53 = 42,247.22 : x
2. Step 2: Convert to fraction form
   78,056.91/107,718.53 = 42,247.22/x
3. Step 3: Cross multiply
   78,056.91x = 107,718.53 × 42,247.22
4. Step 4: Simplify right side
   78,056.91x = 4,550,808,002.01
5. Step 5: Solve for x
   x = 4,550,808,002.01/78,056.91
6. Step 6: Final answer
   x = 58,301.15