Finding the Fourth Proportional to 158,047.48, 218,109.31 and 90,063.00

Step by Step Solution

1. Step 1: Write the proportion equation
   158,047.48 : 218,109.31 = 90,063.00 : x
2. Step 2: Convert to fraction form
   158,047.48/218,109.31 = 90,063.00/x
3. Step 3: Cross multiply
   158,047.48x = 218,109.31 × 90,063.00
4. Step 4: Simplify right side
   158,047.48x = 19,643,578,250.07
5. Step 5: Solve for x
   x = 19,643,578,250.07/158,047.48
6. Step 6: Final answer
   x = 124,289.10