Finding the Fourth Proportional to 90,019.10, 134,989.74 and 37,392.62

Step by Step Solution

1. Step 1: Write the proportion equation
   90,019.10 : 134,989.74 = 37,392.62 : x
2. Step 2: Convert to fraction form
   90,019.10/134,989.74 = 37,392.62/x
3. Step 3: Cross multiply
   90,019.10x = 134,989.74 × 37,392.62
4. Step 4: Simplify right side
   90,019.10x = 5,047,620,051.72
5. Step 5: Solve for x
   x = 5,047,620,051.72/90,019.10
6. Step 6: Final answer
   x = 56,072.77