Finding the Fourth Proportional to 91,973.70, 137,928.15 and 32,811.30

Step by Step Solution

1. Step 1: Write the proportion equation
   91,973.70 : 137,928.15 = 32,811.30 : x
2. Step 2: Convert to fraction form
   91,973.70/137,928.15 = 32,811.30/x
3. Step 3: Cross multiply
   91,973.70x = 137,928.15 × 32,811.30
4. Step 4: Simplify right side
   91,973.70x = 4,525,601,908.10
5. Step 5: Solve for x
   x = 4,525,601,908.10/91,973.70
6. Step 6: Final answer
   x = 49,205.39