Finding the Fourth Proportional to 91,405.94, 137,111.94 and 31,433.82

Step by Step Solution

1. Step 1: Write the proportion equation
   91,405.94 : 137,111.94 = 31,433.82 : x
2. Step 2: Convert to fraction form
   91,405.94/137,111.94 = 31,433.82/x
3. Step 3: Cross multiply
   91,405.94x = 137,111.94 × 31,433.82
4. Step 4: Simplify right side
   91,405.94x = 4,309,952,041.81
5. Step 5: Solve for x
   x = 4,309,952,041.81/91,405.94
6. Step 6: Final answer
   x = 47,151.77