Finding the Fourth Proportional to 152,409.22, 210,327.71 and 91,218.42

Step by Step Solution

1. Step 1: Write the proportion equation
   152,409.22 : 210,327.71 = 91,218.42 : x
2. Step 2: Convert to fraction form
   152,409.22/210,327.71 = 91,218.42/x
3. Step 3: Cross multiply
   152,409.22x = 210,327.71 × 91,218.42
4. Step 4: Simplify right side
   152,409.22x = 19,185,761,388.42
5. Step 5: Solve for x
   x = 19,185,761,388.42/152,409.22
6. Step 6: Final answer
   x = 125,883.21