Finding the Fourth Proportional to 109,145.48, 163,413.98 and 55,722.53

Step by Step Solution

1. Step 1: Write the proportion equation
   109,145.48 : 163,413.98 = 55,722.53 : x
2. Step 2: Convert to fraction form
   109,145.48/163,413.98 = 55,722.53/x
3. Step 3: Cross multiply
   109,145.48x = 163,413.98 × 55,722.53
4. Step 4: Simplify right side
   109,145.48x = 9,105,839,307.29
5. Step 5: Solve for x
   x = 9,105,839,307.29/109,145.48
6. Step 6: Final answer
   x = 83,428.46