Finding the Fourth Proportional to 158,536.02, 218,793.50 and 86,930.00

Step by Step Solution

1. Step 1: Write the proportion equation
   158,536.02 : 218,793.50 = 86,930.00 : x
2. Step 2: Convert to fraction form
   158,536.02/218,793.50 = 86,930.00/x
3. Step 3: Cross multiply
   158,536.02x = 218,793.50 × 86,930.00
4. Step 4: Simplify right side
   158,536.02x = 19,019,717,426.38
5. Step 5: Solve for x
   x = 19,019,717,426.38/158,536.02
6. Step 6: Final answer
   x = 119,970.95