Finding the Fourth Proportional to 90,047.60, 135,059.64 and 23,492.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,047.60 : 135,059.64 = 23,492.72 : x
2. Step 2: Convert to fraction form
   90,047.60/135,059.64 = 23,492.72/x
3. Step 3: Cross multiply
   90,047.60x = 135,059.64 × 23,492.72
4. Step 4: Simplify right side
   90,047.60x = 3,172,918,305.82
5. Step 5: Solve for x
   x = 3,172,918,305.82/90,047.60
6. Step 6: Final answer
   x = 35,236.01