Finding the Fourth Proportional to 110,426.27, 152,349.42 and 72,208.18

Step by Step Solution

1. Step 1: Write the proportion equation
   110,426.27 : 152,349.42 = 72,208.18 : x
2. Step 2: Convert to fraction form
   110,426.27/152,349.42 = 72,208.18/x
3. Step 3: Cross multiply
   110,426.27x = 152,349.42 × 72,208.18
4. Step 4: Simplify right side
   110,426.27x = 11,000,873,961.38
5. Step 5: Solve for x
   x = 11,000,873,961.38/110,426.27
6. Step 6: Final answer
   x = 99,621.89