Finding the Fourth Proportional to 90,196.34, 135,272.61 and 37,577.12

Step by Step Solution

1. Step 1: Write the proportion equation
   90,196.34 : 135,272.61 = 37,577.12 : x
2. Step 2: Convert to fraction form
   90,196.34/135,272.61 = 37,577.12/x
3. Step 3: Cross multiply
   90,196.34x = 135,272.61 × 37,577.12
4. Step 4: Simplify right side
   90,196.34x = 5,083,154,422.32
5. Step 5: Solve for x
   x = 5,083,154,422.32/90,196.34
6. Step 6: Final answer
   x = 56,356.55