Finding the Fourth Proportional to 55,881.72, 83,820.06 and 16,440.12

Step by Step Solution

1. Step 1: Write the proportion equation
   55,881.72 : 83,820.06 = 16,440.12 : x
2. Step 2: Convert to fraction form
   55,881.72/83,820.06 = 16,440.12/x
3. Step 3: Cross multiply
   55,881.72x = 83,820.06 × 16,440.12
4. Step 4: Simplify right side
   55,881.72x = 1,378,011,844.81
5. Step 5: Solve for x
   x = 1,378,011,844.81/55,881.72
6. Step 6: Final answer
   x = 24,659.44