Finding the Fourth Proportional to 275,402.89, 380,059.05 and 152,903.62

Step by Step Solution

1. Step 1: Write the proportion equation
   275,402.89 : 380,059.05 = 152,903.62 : x
2. Step 2: Convert to fraction form
   275,402.89/380,059.05 = 152,903.62/x
3. Step 3: Cross multiply
   275,402.89x = 380,059.05 × 152,903.62
4. Step 4: Simplify right side
   275,402.89x = 58,112,404,558.76
5. Step 5: Solve for x
   x = 58,112,404,558.76/275,402.89
6. Step 6: Final answer
   x = 211,008.70