Finding the Fourth Proportional to 12,457.33, 18,688.56 and 5,061.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,457.33 : 18,688.56 = 5,061.77 : x
2. Step 2: Convert to fraction form
   12,457.33/18,688.56 = 5,061.77/x
3. Step 3: Cross multiply
   12,457.33x = 18,688.56 × 5,061.77
4. Step 4: Simplify right side
   12,457.33x = 94,597,220.09
5. Step 5: Solve for x
   x = 94,597,220.09/12,457.33
6. Step 6: Final answer
   x = 7,593.70