Finding the Fourth Proportional to 113,215, 156,196.87 and 67,907.65

Step by Step Solution

1. Step 1: Write the proportion equation
   113,215 : 156,196.87 = 67,907.65 : x
2. Step 2: Convert to fraction form
   113,215/156,196.87 = 67,907.65/x
3. Step 3: Cross multiply
   113,215x = 156,196.87 × 67,907.65
4. Step 4: Simplify right side
   113,215x = 10,606,962,379.06
5. Step 5: Solve for x
   x = 10,606,962,379.06/113,215
6. Step 6: Final answer
   x = 93,688.67