Finding the Fourth Proportional to 158,878.52, 219,253.86 and 87,260

Step by Step Solution

1. Step 1: Write the proportion equation
   158,878.52 : 219,253.86 = 87,260 : x
2. Step 2: Convert to fraction form
   158,878.52/219,253.86 = 87,260/x
3. Step 3: Cross multiply
   158,878.52x = 219,253.86 × 87,260
4. Step 4: Simplify right side
   158,878.52x = 19,132,091,823.60
5. Step 5: Solve for x
   x = 19,132,091,823.60/158,878.52
6. Step 6: Final answer
   x = 120,419.63