Finding the Fourth Proportional to 525,411.32, 725,068.42 and 299,056.82

Step by Step Solution

1. Step 1: Write the proportion equation
   525,411.32 : 725,068.42 = 299,056.82 : x
2. Step 2: Convert to fraction form
   525,411.32/725,068.42 = 299,056.82/x
3. Step 3: Cross multiply
   525,411.32x = 725,068.42 × 299,056.82
4. Step 4: Simplify right side
   525,411.32x = 216,836,655,967.62
5. Step 5: Solve for x
   x = 216,836,655,967.62/525,411.32
6. Step 6: Final answer
   x = 412,698.87