Finding the Fourth Proportional to 72,503.04, 108,738.72 and 19,907.04

Step by Step Solution

1. Step 1: Write the proportion equation
   72,503.04 : 108,738.72 = 19,907.04 : x
2. Step 2: Convert to fraction form
   72,503.04/108,738.72 = 19,907.04/x
3. Step 3: Cross multiply
   72,503.04x = 108,738.72 × 19,907.04
4. Step 4: Simplify right side
   72,503.04x = 2,164,666,048.59
5. Step 5: Solve for x
   x = 2,164,666,048.59/72,503.04
6. Step 6: Final answer
   x = 29,856.21