Finding the Fourth Proportional to 101,410.32, 152,135.76 and 31,287

Step by Step Solution

1. Step 1: Write the proportion equation
   101,410.32 : 152,135.76 = 31,287 : x
2. Step 2: Convert to fraction form
   101,410.32/152,135.76 = 31,287/x
3. Step 3: Cross multiply
   101,410.32x = 152,135.76 × 31,287
4. Step 4: Simplify right side
   101,410.32x = 4,759,871,523.12
5. Step 5: Solve for x
   x = 4,759,871,523.12/101,410.32
6. Step 6: Final answer
   x = 46,936.76