Finding the Fourth Proportional to 78,301.16, 108,055.88 and 42,491.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,301.16 : 108,055.88 = 42,491.18 : x
2. Step 2: Convert to fraction form
   78,301.16/108,055.88 = 42,491.18/x
3. Step 3: Cross multiply
   78,301.16x = 108,055.88 × 42,491.18
4. Step 4: Simplify right side
   78,301.16x = 4,591,421,847.14
5. Step 5: Solve for x
   x = 4,591,421,847.14/78,301.16
6. Step 6: Final answer
   x = 58,637.98