Finding the Fourth Proportional to 91,865.47, 137,817.88 and 31,895.82

Step by Step Solution

1. Step 1: Write the proportion equation
   91,865.47 : 137,817.88 = 31,895.82 : x
2. Step 2: Convert to fraction form
   91,865.47/137,817.88 = 31,895.82/x
3. Step 3: Cross multiply
   91,865.47x = 137,817.88 × 31,895.82
4. Step 4: Simplify right side
   91,865.47x = 4,395,814,293.26
5. Step 5: Solve for x
   x = 4,395,814,293.26/91,865.47
6. Step 6: Final answer
   x = 47,850.56