Finding the Fourth Proportional to 478,122.69, 717,016.73 and 141,073.86

Step by Step Solution

1. Step 1: Write the proportion equation
   478,122.69 : 717,016.73 = 141,073.86 : x
2. Step 2: Convert to fraction form
   478,122.69/717,016.73 = 141,073.86/x
3. Step 3: Cross multiply
   478,122.69x = 717,016.73 × 141,073.86
4. Step 4: Simplify right side
   478,122.69x = 101,152,317,080.31
5. Step 5: Solve for x
   x = 101,152,317,080.31/478,122.69
6. Step 6: Final answer
   x = 211,561.42