Finding the Fourth Proportional to 90,475.50, 135,714.12 and 34,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,475.50 : 135,714.12 = 34,300.50 : x
2. Step 2: Convert to fraction form
   90,475.50/135,714.12 = 34,300.50/x
3. Step 3: Cross multiply
   90,475.50x = 135,714.12 × 34,300.50
4. Step 4: Simplify right side
   90,475.50x = 4,655,062,173.06
5. Step 5: Solve for x
   x = 4,655,062,173.06/90,475.50
6. Step 6: Final answer
   x = 51,451.08