Finding the Fourth Proportional to 152,860.06, 210,946.89 and 85,792.06

Step by Step Solution

1. Step 1: Write the proportion equation
   152,860.06 : 210,946.89 = 85,792.06 : x
2. Step 2: Convert to fraction form
   152,860.06/210,946.89 = 85,792.06/x
3. Step 3: Cross multiply
   152,860.06x = 210,946.89 × 85,792.06
4. Step 4: Simplify right side
   152,860.06x = 18,097,568,449.34
5. Step 5: Solve for x
   x = 18,097,568,449.34/152,860.06
6. Step 6: Final answer
   x = 118,393.05