Finding the Fourth Proportional to 155,858.56, 215,083.20 and 88,792

Step by Step Solution

1. Step 1: Write the proportion equation
   155,858.56 : 215,083.20 = 88,792 : x
2. Step 2: Convert to fraction form
   155,858.56/215,083.20 = 88,792/x
3. Step 3: Cross multiply
   155,858.56x = 215,083.20 × 88,792
4. Step 4: Simplify right side
   155,858.56x = 19,097,667,494.40
5. Step 5: Solve for x
   x = 19,097,667,494.40/155,858.56
6. Step 6: Final answer
   x = 122,532.04