Finding the Fourth Proportional to 149,978.62, 224,855.88 and 90,800.02

Step by Step Solution

1. Step 1: Write the proportion equation
   149,978.62 : 224,855.88 = 90,800.02 : x
2. Step 2: Convert to fraction form
   149,978.62/224,855.88 = 90,800.02/x
3. Step 3: Cross multiply
   149,978.62x = 224,855.88 × 90,800.02
4. Step 4: Simplify right side
   149,978.62x = 20,416,918,401.12
5. Step 5: Solve for x
   x = 20,416,918,401.12/149,978.62
6. Step 6: Final answer
   x = 136,132.19