Finding the Fourth Proportional to 249,723.33, 374,410.01 and 91,931.31

Step by Step Solution

1. Step 1: Write the proportion equation
   249,723.33 : 374,410.01 = 91,931.31 : x
2. Step 2: Convert to fraction form
   249,723.33/374,410.01 = 91,931.31/x
3. Step 3: Cross multiply
   249,723.33x = 374,410.01 × 91,931.31
4. Step 4: Simplify right side
   249,723.33x = 34,420,002,236.76
5. Step 5: Solve for x
   x = 34,420,002,236.76/249,723.33
6. Step 6: Final answer
   x = 137,832.55