Finding the Fourth Proportional to 89,068.69, 122,916.18 and 48,781.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,068.69 : 122,916.18 = 48,781.72 : x
2. Step 2: Convert to fraction form
   89,068.69/122,916.18 = 48,781.72/x
3. Step 3: Cross multiply
   89,068.69x = 122,916.18 × 48,781.72
4. Step 4: Simplify right side
   89,068.69x = 5,996,062,676.23
5. Step 5: Solve for x
   x = 5,996,062,676.23/89,068.69
6. Step 6: Final answer
   x = 67,319.53