Finding the Fourth Proportional to 112,716.96, 155,549.16 and 64,969.98

Step by Step Solution

1. Step 1: Write the proportion equation
   112,716.96 : 155,549.16 = 64,969.98 : x
2. Step 2: Convert to fraction form
   112,716.96/155,549.16 = 64,969.98/x
3. Step 3: Cross multiply
   112,716.96x = 155,549.16 × 64,969.98
4. Step 4: Simplify right side
   112,716.96x = 10,106,025,814.22
5. Step 5: Solve for x
   x = 10,106,025,814.22/112,716.96
6. Step 6: Final answer
   x = 89,658.43