Finding the Fourth Proportional to 123,052.28, 169,766.58 and 72,056.30

Step by Step Solution

1. Step 1: Write the proportion equation
   123,052.28 : 169,766.58 = 72,056.30 : x
2. Step 2: Convert to fraction form
   123,052.28/169,766.58 = 72,056.30/x
3. Step 3: Cross multiply
   123,052.28x = 169,766.58 × 72,056.30
4. Step 4: Simplify right side
   123,052.28x = 12,232,751,618.45
5. Step 5: Solve for x
   x = 12,232,751,618.45/123,052.28
6. Step 6: Final answer
   x = 99,411.01