Finding the Fourth Proportional to 434,100.05, 651,174.69 and 134,623.21

Step by Step Solution

1. Step 1: Write the proportion equation
   434,100.05 : 651,174.69 = 134,623.21 : x
2. Step 2: Convert to fraction form
   434,100.05/651,174.69 = 134,623.21/x
3. Step 3: Cross multiply
   434,100.05x = 651,174.69 × 134,623.21
4. Step 4: Simplify right side
   434,100.05x = 87,663,227,038.55
5. Step 5: Solve for x
   x = 87,663,227,038.55/434,100.05
6. Step 6: Final answer
   x = 201,942.45