Finding the Fourth Proportional to 462,300.16, 693,474 and 129,902.08

Step by Step Solution

1. Step 1: Write the proportion equation
   462,300.16 : 693,474 = 129,902.08 : x
2. Step 2: Convert to fraction form
   462,300.16/693,474 = 129,902.08/x
3. Step 3: Cross multiply
   462,300.16x = 693,474 × 129,902.08
4. Step 4: Simplify right side
   462,300.16x = 90,083,715,025.92
5. Step 5: Solve for x
   x = 90,083,715,025.92/462,300.16
6. Step 6: Final answer
   x = 194,859.80