Finding the Fourth Proportional to 136,500.32, 204,610.17 and 52,240.70

Step by Step Solution

1. Step 1: Write the proportion equation
   136,500.32 : 204,610.17 = 52,240.70 : x
2. Step 2: Convert to fraction form
   136,500.32/204,610.17 = 52,240.70/x
3. Step 3: Cross multiply
   136,500.32x = 204,610.17 × 52,240.70
4. Step 4: Simplify right side
   136,500.32x = 10,688,978,507.92
5. Step 5: Solve for x
   x = 10,688,978,507.92/136,500.32
6. Step 6: Final answer
   x = 78,307.35