Finding the Fourth Proportional to 155,843.86, 215,064.56 and 88,775.86

Step by Step Solution

1. Step 1: Write the proportion equation
   155,843.86 : 215,064.56 = 88,775.86 : x
2. Step 2: Convert to fraction form
   155,843.86/215,064.56 = 88,775.86/x
3. Step 3: Cross multiply
   155,843.86x = 215,064.56 × 88,775.86
4. Step 4: Simplify right side
   155,843.86x = 19,092,541,269.52
5. Step 5: Solve for x
   x = 19,092,541,269.52/155,843.86
6. Step 6: Final answer
   x = 122,510.71