Finding the Fourth Proportional to 218,061.18, 327,116.34 and 99,700.74

Step by Step Solution

1. Step 1: Write the proportion equation
   218,061.18 : 327,116.34 = 99,700.74 : x
2. Step 2: Convert to fraction form
   218,061.18/327,116.34 = 99,700.74/x
3. Step 3: Cross multiply
   218,061.18x = 327,116.34 × 99,700.74
4. Step 4: Simplify right side
   218,061.18x = 32,613,741,164.09
5. Step 5: Solve for x
   x = 32,613,741,164.09/218,061.18
6. Step 6: Final answer
   x = 149,562.34