Finding the Fourth Proportional to 210,667.88, 316,002.42 and 60,920.34

Step by Step Solution

1. Step 1: Write the proportion equation
   210,667.88 : 316,002.42 = 60,920.34 : x
2. Step 2: Convert to fraction form
   210,667.88/316,002.42 = 60,920.34/x
3. Step 3: Cross multiply
   210,667.88x = 316,002.42 × 60,920.34
4. Step 4: Simplify right side
   210,667.88x = 19,250,974,867.22
5. Step 5: Solve for x
   x = 19,250,974,867.22/210,667.88
6. Step 6: Final answer
   x = 91,380.68