Finding the Fourth Proportional to 83,710.72, 115,551.12 and 55,425.52

Step by Step Solution

1. Step 1: Write the proportion equation
   83,710.72 : 115,551.12 = 55,425.52 : x
2. Step 2: Convert to fraction form
   83,710.72/115,551.12 = 55,425.52/x
3. Step 3: Cross multiply
   83,710.72x = 115,551.12 × 55,425.52
4. Step 4: Simplify right side
   83,710.72x = 6,404,480,912.58
5. Step 5: Solve for x
   x = 6,404,480,912.58/83,710.72
6. Step 6: Final answer
   x = 76,507.30