Finding the Fourth Proportional to 91,985.98, 137,863.54 and 39,333.55

Step by Step Solution

1. Step 1: Write the proportion equation
   91,985.98 : 137,863.54 = 39,333.55 : x
2. Step 2: Convert to fraction form
   91,985.98/137,863.54 = 39,333.55/x
3. Step 3: Cross multiply
   91,985.98x = 137,863.54 × 39,333.55
4. Step 4: Simplify right side
   91,985.98x = 5,422,662,369.77
5. Step 5: Solve for x
   x = 5,422,662,369.77/91,985.98
6. Step 6: Final answer
   x = 58,950.97