Finding the Fourth Proportional to 110,272.21, 152,119.53 and 72,054.10

Step by Step Solution

1. Step 1: Write the proportion equation
   110,272.21 : 152,119.53 = 72,054.10 : x
2. Step 2: Convert to fraction form
   110,272.21/152,119.53 = 72,054.10/x
3. Step 3: Cross multiply
   110,272.21x = 152,119.53 × 72,054.10
4. Step 4: Simplify right side
   110,272.21x = 10,960,835,826.57
5. Step 5: Solve for x
   x = 10,960,835,826.57/110,272.21
6. Step 6: Final answer
   x = 99,397.99