Finding the Fourth Proportional to 90,401.10, 135,577.35 and 37,799.70

Step by Step Solution

1. Step 1: Write the proportion equation
   90,401.10 : 135,577.35 = 37,799.70 : x
2. Step 2: Convert to fraction form
   90,401.10/135,577.35 = 37,799.70/x
3. Step 3: Cross multiply
   90,401.10x = 135,577.35 × 37,799.70
4. Step 4: Simplify right side
   90,401.10x = 5,124,783,156.80
5. Step 5: Solve for x
   x = 5,124,783,156.80/90,401.10
6. Step 6: Final answer
   x = 56,689.39