Finding the Fourth Proportional to 112,369, 155,069.78 and 64,625.16

Step by Step Solution

1. Step 1: Write the proportion equation
   112,369 : 155,069.78 = 64,625.16 : x
2. Step 2: Convert to fraction form
   112,369/155,069.78 = 64,625.16/x
3. Step 3: Cross multiply
   112,369x = 155,069.78 × 64,625.16
4. Step 4: Simplify right side
   112,369x = 10,021,409,343.66
5. Step 5: Solve for x
   x = 10,021,409,343.66/112,369
6. Step 6: Final answer
   x = 89,183.04