Finding the Fourth Proportional to 152,290.50, 210,131.73 and 98,568.06

Step by Step Solution

1. Step 1: Write the proportion equation
   152,290.50 : 210,131.73 = 98,568.06 : x
2. Step 2: Convert to fraction form
   152,290.50/210,131.73 = 98,568.06/x
3. Step 3: Cross multiply
   152,290.50x = 210,131.73 × 98,568.06
4. Step 4: Simplify right side
   152,290.50x = 20,712,276,970.54
5. Step 5: Solve for x
   x = 20,712,276,970.54/152,290.50
6. Step 6: Final answer
   x = 136,005.05