Finding the Fourth Proportional to 490,072.28, 735,081.89 and 153,074.21

Step by Step Solution

1. Step 1: Write the proportion equation
   490,072.28 : 735,081.89 = 153,074.21 : x
2. Step 2: Convert to fraction form
   490,072.28/735,081.89 = 153,074.21/x
3. Step 3: Cross multiply
   490,072.28x = 735,081.89 × 153,074.21
4. Step 4: Simplify right side
   490,072.28x = 112,522,075,156.28
5. Step 5: Solve for x
   x = 112,522,075,156.28/490,072.28
6. Step 6: Final answer
   x = 229,603.02