Finding the Fourth Proportional to 147,507.10, 203,507.31 and 87,047.49

Step by Step Solution

1. Step 1: Write the proportion equation
   147,507.10 : 203,507.31 = 87,047.49 : x
2. Step 2: Convert to fraction form
   147,507.10/203,507.31 = 87,047.49/x
3. Step 3: Cross multiply
   147,507.10x = 203,507.31 × 87,047.49
4. Step 4: Simplify right side
   147,507.10x = 17,714,800,532.15
5. Step 5: Solve for x
   x = 17,714,800,532.15/147,507.10
6. Step 6: Final answer
   x = 120,094.56