Finding the Fourth Proportional to 436,300.48, 654,449.50 and 136,782.32

Step by Step Solution

1. Step 1: Write the proportion equation
   436,300.48 : 654,449.50 = 136,782.32 : x
2. Step 2: Convert to fraction form
   436,300.48/654,449.50 = 136,782.32/x
3. Step 3: Cross multiply
   436,300.48x = 654,449.50 × 136,782.32
4. Step 4: Simplify right side
   436,300.48x = 89,517,120,248.93
5. Step 5: Solve for x
   x = 89,517,120,248.93/436,300.48
6. Step 6: Final answer
   x = 205,173.10