Finding the Fourth Proportional to 172,899.60, 259,245.72 and 67,593.12

Step by Step Solution

1. Step 1: Write the proportion equation
   172,899.60 : 259,245.72 = 67,593.12 : x
2. Step 2: Convert to fraction form
   172,899.60/259,245.72 = 67,593.12/x
3. Step 3: Cross multiply
   172,899.60x = 259,245.72 × 67,593.12
4. Step 4: Simplify right side
   172,899.60x = 17,523,227,061.45
5. Step 5: Solve for x
   x = 17,523,227,061.45/172,899.60
6. Step 6: Final answer
   x = 101,349.15