Finding the Fourth Proportional to 70,667.02, 105,825.57 and 51,902.56

Step by Step Solution

1. Step 1: Write the proportion equation
   70,667.02 : 105,825.57 = 51,902.56 : x
2. Step 2: Convert to fraction form
   70,667.02/105,825.57 = 51,902.56/x
3. Step 3: Cross multiply
   70,667.02x = 105,825.57 × 51,902.56
4. Step 4: Simplify right side
   70,667.02x = 5,492,617,996.46
5. Step 5: Solve for x
   x = 5,492,617,996.46/70,667.02
6. Step 6: Final answer
   x = 77,725.34