Finding the Fourth Proportional to 110,426.71, 152,350.05 and 72,208.63

Step by Step Solution

1. Step 1: Write the proportion equation
   110,426.71 : 152,350.05 = 72,208.63 : x
2. Step 2: Convert to fraction form
   110,426.71/152,350.05 = 72,208.63/x
3. Step 3: Cross multiply
   110,426.71x = 152,350.05 × 72,208.63
4. Step 4: Simplify right side
   110,426.71x = 11,000,988,390.93
5. Step 5: Solve for x
   x = 11,000,988,390.93/110,426.71
6. Step 6: Final answer
   x = 99,622.53