Finding the Fourth Proportional to 102,504.69, 153,801.43 and 55,064.43

Step by Step Solution

1. Step 1: Write the proportion equation
   102,504.69 : 153,801.43 = 55,064.43 : x
2. Step 2: Convert to fraction form
   102,504.69/153,801.43 = 55,064.43/x
3. Step 3: Cross multiply
   102,504.69x = 153,801.43 × 55,064.43
4. Step 4: Simplify right side
   102,504.69x = 8,468,987,938.47
5. Step 5: Solve for x
   x = 8,468,987,938.47/102,504.69
6. Step 6: Final answer
   x = 82,620.49