Finding the Fourth Proportional to 78,381.49, 108,197.48 and 54,522.01

Step by Step Solution

1. Step 1: Write the proportion equation
   78,381.49 : 108,197.48 = 54,522.01 : x
2. Step 2: Convert to fraction form
   78,381.49/108,197.48 = 54,522.01/x
3. Step 3: Cross multiply
   78,381.49x = 108,197.48 × 54,522.01
4. Step 4: Simplify right side
   78,381.49x = 5,899,144,086.53
5. Step 5: Solve for x
   x = 5,899,144,086.53/78,381.49
6. Step 6: Final answer
   x = 75,261.95