Finding the Fourth Proportional to 90,836.82, 136,216.35 and 31,654.98

Step by Step Solution

1. Step 1: Write the proportion equation
   90,836.82 : 136,216.35 = 31,654.98 : x
2. Step 2: Convert to fraction form
   90,836.82/136,216.35 = 31,654.98/x
3. Step 3: Cross multiply
   90,836.82x = 136,216.35 × 31,654.98
4. Step 4: Simplify right side
   90,836.82x = 4,311,925,834.92
5. Step 5: Solve for x
   x = 4,311,925,834.92/90,836.82
6. Step 6: Final answer
   x = 47,468.92