Finding the Fourth Proportional to 89,173.48, 123,071.93 and 55,192.86

Step by Step Solution

1. Step 1: Write the proportion equation
   89,173.48 : 123,071.93 = 55,192.86 : x
2. Step 2: Convert to fraction form
   89,173.48/123,071.93 = 55,192.86/x
3. Step 3: Cross multiply
   89,173.48x = 123,071.93 × 55,192.86
4. Step 4: Simplify right side
   89,173.48x = 6,792,690,911.10
5. Step 5: Solve for x
   x = 6,792,690,911.10/89,173.48
6. Step 6: Final answer
   x = 76,173.89