Finding the Fourth Proportional to 85,196.61, 117,562.86 and 49,398.66

Step by Step Solution

1. Step 1: Write the proportion equation
   85,196.61 : 117,562.86 = 49,398.66 : x
2. Step 2: Convert to fraction form
   85,196.61/117,562.86 = 49,398.66/x
3. Step 3: Cross multiply
   85,196.61x = 117,562.86 × 49,398.66
4. Step 4: Simplify right side
   85,196.61x = 5,807,447,749.77
5. Step 5: Solve for x
   x = 5,807,447,749.77/85,196.61
6. Step 6: Final answer
   x = 68,165.24