Finding the Fourth Proportional to 101,805.72, 152,723.16 and 31,692.12

Step by Step Solution

1. Step 1: Write the proportion equation
   101,805.72 : 152,723.16 = 31,692.12 : x
2. Step 2: Convert to fraction form
   101,805.72/152,723.16 = 31,692.12/x
3. Step 3: Cross multiply
   101,805.72x = 152,723.16 × 31,692.12
4. Step 4: Simplify right side
   101,805.72x = 4,840,120,713.50
5. Step 5: Solve for x
   x = 4,840,120,713.50/101,805.72
6. Step 6: Final answer
   x = 47,542.72