Finding the Fourth Proportional to 91,918.61, 137,846.91 and 34,979

Step by Step Solution

1. Step 1: Write the proportion equation
   91,918.61 : 137,846.91 = 34,979 : x
2. Step 2: Convert to fraction form
   91,918.61/137,846.91 = 34,979/x
3. Step 3: Cross multiply
   91,918.61x = 137,846.91 × 34,979
4. Step 4: Simplify right side
   91,918.61x = 4,821,747,064.89
5. Step 5: Solve for x
   x = 4,821,747,064.89/91,918.61
6. Step 6: Final answer
   x = 52,456.70