Finding the Fourth Proportional to 68,667.84, 102,977.28 and 31,196.52

Step by Step Solution

1. Step 1: Write the proportion equation
   68,667.84 : 102,977.28 = 31,196.52 : x
2. Step 2: Convert to fraction form
   68,667.84/102,977.28 = 31,196.52/x
3. Step 3: Cross multiply
   68,667.84x = 102,977.28 × 31,196.52
4. Step 4: Simplify right side
   68,667.84x = 3,212,532,775.07
5. Step 5: Solve for x
   x = 3,212,532,775.07/68,667.84
6. Step 6: Final answer
   x = 46,783.66