Finding the Fourth Proportional to 78,427.72, 108,124.26 and 53,233.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,427.72 : 108,124.26 = 53,233.48 : x
2. Step 2: Convert to fraction form
   78,427.72/108,124.26 = 53,233.48/x
3. Step 3: Cross multiply
   78,427.72x = 108,124.26 × 53,233.48
4. Step 4: Simplify right side
   78,427.72x = 5,755,830,632.22
5. Step 5: Solve for x
   x = 5,755,830,632.22/78,427.72
6. Step 6: Final answer
   x = 73,390.26