Finding the Fourth Proportional to 78,397.76, 108,187.76 and 42,588.24

Step by Step Solution

1. Step 1: Write the proportion equation
   78,397.76 : 108,187.76 = 42,588.24 : x
2. Step 2: Convert to fraction form
   78,397.76/108,187.76 = 42,588.24/x
3. Step 3: Cross multiply
   78,397.76x = 108,187.76 × 42,588.24
4. Step 4: Simplify right side
   78,397.76x = 4,607,526,287.94
5. Step 5: Solve for x
   x = 4,607,526,287.94/78,397.76
6. Step 6: Final answer
   x = 58,771.15