Finding the Fourth Proportional to 159,404.01, 219,978.98 and 87,784.32

Step by Step Solution

1. Step 1: Write the proportion equation
   159,404.01 : 219,978.98 = 87,784.32 : x
2. Step 2: Convert to fraction form
   159,404.01/219,978.98 = 87,784.32/x
3. Step 3: Cross multiply
   159,404.01x = 219,978.98 × 87,784.32
4. Step 4: Simplify right side
   159,404.01x = 19,310,704,734.67
5. Step 5: Solve for x
   x = 19,310,704,734.67/159,404.01
6. Step 6: Final answer
   x = 121,143.16