Finding the Fourth Proportional to 85,437.86, 117,905.02 and 49,629.38

Step by Step Solution

1. Step 1: Write the proportion equation
   85,437.86 : 117,905.02 = 49,629.38 : x
2. Step 2: Convert to fraction form
   85,437.86/117,905.02 = 49,629.38/x
3. Step 3: Cross multiply
   85,437.86x = 117,905.02 × 49,629.38
4. Step 4: Simplify right side
   85,437.86x = 5,851,552,327.89
5. Step 5: Solve for x
   x = 5,851,552,327.89/85,437.86
6. Step 6: Final answer
   x = 68,488.99