Finding the Fourth Proportional to 78,426.72, 108,122.88 and 53,232.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,426.72 : 108,122.88 = 53,232.48 : x
2. Step 2: Convert to fraction form
   78,426.72/108,122.88 = 53,232.48/x
3. Step 3: Cross multiply
   78,426.72x = 108,122.88 × 53,232.48
4. Step 4: Simplify right side
   78,426.72x = 5,755,649,047.14
5. Step 5: Solve for x
   x = 5,755,649,047.14/78,426.72
6. Step 6: Final answer
   x = 73,388.88