Finding the Fourth Proportional to 172,390, 237,895.86 and 96,938.68

Step by Step Solution

1. Step 1: Write the proportion equation
   172,390 : 237,895.86 = 96,938.68 : x
2. Step 2: Convert to fraction form
   172,390/237,895.86 = 96,938.68/x
3. Step 3: Cross multiply
   172,390x = 237,895.86 × 96,938.68
4. Step 4: Simplify right side
   172,390x = 23,061,310,645.86
5. Step 5: Solve for x
   x = 23,061,310,645.86/172,390
6. Step 6: Final answer
   x = 133,774.06