Finding the Fourth Proportional to 215,314.47, 296,826 and 151,454.07

Step by Step Solution

1. Step 1: Write the proportion equation
   215,314.47 : 296,826 = 151,454.07 : x
2. Step 2: Convert to fraction form
   215,314.47/296,826 = 151,454.07/x
3. Step 3: Cross multiply
   215,314.47x = 296,826 × 151,454.07
4. Step 4: Simplify right side
   215,314.47x = 44,955,505,781.82
5. Step 5: Solve for x
   x = 44,955,505,781.82/215,314.47
6. Step 6: Final answer
   x = 208,789.99