Finding the Fourth Proportional to 85,002.72, 117,301.68 and 49,187.76

Step by Step Solution

1. Step 1: Write the proportion equation
   85,002.72 : 117,301.68 = 49,187.76 : x
2. Step 2: Convert to fraction form
   85,002.72/117,301.68 = 49,187.76/x
3. Step 3: Cross multiply
   85,002.72x = 117,301.68 × 49,187.76
4. Step 4: Simplify right side
   85,002.72x = 5,769,806,883.44
5. Step 5: Solve for x
   x = 5,769,806,883.44/85,002.72
6. Step 6: Final answer
   x = 67,877.91