Finding the Fourth Proportional to 72,100.12, 108,150.90 and 19,510.12

Step by Step Solution

1. Step 1: Write the proportion equation
   72,100.12 : 108,150.90 = 19,510.12 : x
2. Step 2: Convert to fraction form
   72,100.12/108,150.90 = 19,510.12/x
3. Step 3: Cross multiply
   72,100.12x = 108,150.90 × 19,510.12
4. Step 4: Simplify right side
   72,100.12x = 2,110,037,037.11
5. Step 5: Solve for x
   x = 2,110,037,037.11/72,100.12
6. Step 6: Final answer
   x = 29,265.37