Finding the Fourth Proportional to 89,429.23, 123,385.43 and 53,606.17

Step by Step Solution

1. Step 1: Write the proportion equation
   89,429.23 : 123,385.43 = 53,606.17 : x
2. Step 2: Convert to fraction form
   89,429.23/123,385.43 = 53,606.17/x
3. Step 3: Cross multiply
   89,429.23x = 123,385.43 × 53,606.17
4. Step 4: Simplify right side
   89,429.23x = 6,614,220,322.82
5. Step 5: Solve for x
   x = 6,614,220,322.82/89,429.23
6. Step 6: Final answer
   x = 73,960.38