Finding the Fourth Proportional to 275,454.99, 380,146.72 and 152,953.70

Step by Step Solution

1. Step 1: Write the proportion equation
   275,454.99 : 380,146.72 = 152,953.70 : x
2. Step 2: Convert to fraction form
   275,454.99/380,146.72 = 152,953.70/x
3. Step 3: Cross multiply
   275,454.99x = 380,146.72 × 152,953.70
4. Step 4: Simplify right side
   275,454.99x = 58,144,847,366.86
5. Step 5: Solve for x
   x = 58,144,847,366.86/275,454.99
6. Step 6: Final answer
   x = 211,086.56