Finding the Fourth Proportional to 91,164.88, 136,772.43 and 31,992.76

Step by Step Solution

1. Step 1: Write the proportion equation
   91,164.88 : 136,772.43 = 31,992.76 : x
2. Step 2: Convert to fraction form
   91,164.88/136,772.43 = 31,992.76/x
3. Step 3: Cross multiply
   91,164.88x = 136,772.43 × 31,992.76
4. Step 4: Simplify right side
   91,164.88x = 4,375,727,527.61
5. Step 5: Solve for x
   x = 4,375,727,527.61/91,164.88
6. Step 6: Final answer
   x = 47,997.95