Finding the Fourth Proportional to 365,419.89, 548,123.81 and 109,253.07

Step by Step Solution

1. Step 1: Write the proportion equation
   365,419.89 : 548,123.81 = 109,253.07 : x
2. Step 2: Convert to fraction form
   365,419.89/548,123.81 = 109,253.07/x
3. Step 3: Cross multiply
   365,419.89x = 548,123.81 × 109,253.07
4. Step 4: Simplify right side
   365,419.89x = 59,884,208,436.33
5. Step 5: Solve for x
   x = 59,884,208,436.33/365,419.89
6. Step 6: Final answer
   x = 163,877.80