Finding the Fourth Proportional to 56,620.56, 84,931.02 and 17,178

Step by Step Solution

1. Step 1: Write the proportion equation
   56,620.56 : 84,931.02 = 17,178 : x
2. Step 2: Convert to fraction form
   56,620.56/84,931.02 = 17,178/x
3. Step 3: Cross multiply
   56,620.56x = 84,931.02 × 17,178
4. Step 4: Simplify right side
   56,620.56x = 1,458,945,061.56
5. Step 5: Solve for x
   x = 1,458,945,061.56/56,620.56
6. Step 6: Final answer
   x = 25,767.05