Finding the Fourth Proportional to 109,688.63, 164,499.52 and 57,069.41

Step by Step Solution

1. Step 1: Write the proportion equation
   109,688.63 : 164,499.52 = 57,069.41 : x
2. Step 2: Convert to fraction form
   109,688.63/164,499.52 = 57,069.41/x
3. Step 3: Cross multiply
   109,688.63x = 164,499.52 × 57,069.41
4. Step 4: Simplify right side
   109,688.63x = 9,387,889,586.51
5. Step 5: Solve for x
   x = 9,387,889,586.51/109,688.63
6. Step 6: Final answer
   x = 85,586.72