Finding the Fourth Proportional to 91,973.50, 137,844.83 and 39,321.10

Step by Step Solution

1. Step 1: Write the proportion equation
   91,973.50 : 137,844.83 = 39,321.10 : x
2. Step 2: Convert to fraction form
   91,973.50/137,844.83 = 39,321.10/x
3. Step 3: Cross multiply
   91,973.50x = 137,844.83 × 39,321.10
4. Step 4: Simplify right side
   91,973.50x = 5,420,210,344.91
5. Step 5: Solve for x
   x = 5,420,210,344.91/91,973.50
6. Step 6: Final answer
   x = 58,932.30