Finding the Fourth Proportional to 112,707.96, 155,536.74 and 64,960.98

Step by Step Solution

1. Step 1: Write the proportion equation
   112,707.96 : 155,536.74 = 64,960.98 : x
2. Step 2: Convert to fraction form
   112,707.96/155,536.74 = 64,960.98/x
3. Step 3: Cross multiply
   112,707.96x = 155,536.74 × 64,960.98
4. Step 4: Simplify right side
   112,707.96x = 10,103,819,056.41
5. Step 5: Solve for x
   x = 10,103,819,056.41/112,707.96
6. Step 6: Final answer
   x = 89,646.01