Finding the Fourth Proportional to 278,969.07, 384,977.01 and 151,645.59

Step by Step Solution

1. Step 1: Write the proportion equation
   278,969.07 : 384,977.01 = 151,645.59 : x
2. Step 2: Convert to fraction form
   278,969.07/384,977.01 = 151,645.59/x
3. Step 3: Cross multiply
   278,969.07x = 384,977.01 × 151,645.59
4. Step 4: Simplify right side
   278,969.07x = 58,380,065,817.89
5. Step 5: Solve for x
   x = 58,380,065,817.89/278,969.07
6. Step 6: Final answer
   x = 209,270.75