Finding the Fourth Proportional to 152,496.80, 210,443.04 and 83,585.60

Step by Step Solution

1. Step 1: Write the proportion equation
   152,496.80 : 210,443.04 = 83,585.60 : x
2. Step 2: Convert to fraction form
   152,496.80/210,443.04 = 83,585.60/x
3. Step 3: Cross multiply
   152,496.80x = 210,443.04 × 83,585.60
4. Step 4: Simplify right side
   152,496.80x = 17,590,007,764.22
5. Step 5: Solve for x
   x = 17,590,007,764.22/152,496.80
6. Step 6: Final answer
   x = 115,346.73