Finding the Fourth Proportional to 149,870.50, 206,827.23 and 86,208.22

Step by Step Solution

1. Step 1: Write the proportion equation
   149,870.50 : 206,827.23 = 86,208.22 : x
2. Step 2: Convert to fraction form
   149,870.50/206,827.23 = 86,208.22/x
3. Step 3: Cross multiply
   149,870.50x = 206,827.23 × 86,208.22
4. Step 4: Simplify right side
   149,870.50x = 17,830,207,345.83
5. Step 5: Solve for x
   x = 17,830,207,345.83/149,870.50
6. Step 6: Final answer
   x = 118,970.76