Finding the Fourth Proportional to 368,112.17, 552,061.55 and 143,422.52

Step by Step Solution

1. Step 1: Write the proportion equation
   368,112.17 : 552,061.55 = 143,422.52 : x
2. Step 2: Convert to fraction form
   368,112.17/552,061.55 = 143,422.52/x
3. Step 3: Cross multiply
   368,112.17x = 552,061.55 × 143,422.52
4. Step 4: Simplify right side
   368,112.17x = 79,178,056,294.35
5. Step 5: Solve for x
   x = 79,178,056,294.35/368,112.17
6. Step 6: Final answer
   x = 215,092.20