Finding the Fourth Proportional to 83,690.50, 125,536.41 and 31,099.94

Step by Step Solution

1. Step 1: Write the proportion equation
   83,690.50 : 125,536.41 = 31,099.94 : x
2. Step 2: Convert to fraction form
   83,690.50/125,536.41 = 31,099.94/x
3. Step 3: Cross multiply
   83,690.50x = 125,536.41 × 31,099.94
4. Step 4: Simplify right side
   83,690.50x = 3,904,174,818.82
5. Step 5: Solve for x
   x = 3,904,174,818.82/83,690.50
6. Step 6: Final answer
   x = 46,650.16