Finding the Fourth Proportional to 152,196.29, 228,045.10 and 81,043.39

Step by Step Solution

1. Step 1: Write the proportion equation
   152,196.29 : 228,045.10 = 81,043.39 : x
2. Step 2: Convert to fraction form
   152,196.29/228,045.10 = 81,043.39/x
3. Step 3: Cross multiply
   152,196.29x = 228,045.10 × 81,043.39
4. Step 4: Simplify right side
   152,196.29x = 18,481,546,700.61
5. Step 5: Solve for x
   x = 18,481,546,700.61/152,196.29
6. Step 6: Final answer
   x = 121,432.31