Finding the Fourth Proportional to 109,758.72, 164,430.72 and 54,186.24

Step by Step Solution

1. Step 1: Write the proportion equation
   109,758.72 : 164,430.72 = 54,186.24 : x
2. Step 2: Convert to fraction form
   109,758.72/164,430.72 = 54,186.24/x
3. Step 3: Cross multiply
   109,758.72x = 164,430.72 × 54,186.24
4. Step 4: Simplify right side
   109,758.72x = 8,909,882,457.29
5. Step 5: Solve for x
   x = 8,909,882,457.29/109,758.72
6. Step 6: Final answer
   x = 81,176.99