Finding the Fourth Proportional to 277,061.04, 415,620.72 and 136,684.80

Step by Step Solution

1. Step 1: Write the proportion equation
   277,061.04 : 415,620.72 = 136,684.80 : x
2. Step 2: Convert to fraction form
   277,061.04/415,620.72 = 136,684.80/x
3. Step 3: Cross multiply
   277,061.04x = 415,620.72 × 136,684.80
4. Step 4: Simplify right side
   277,061.04x = 56,809,034,989.06
5. Step 5: Solve for x
   x = 56,809,034,989.06/277,061.04
6. Step 6: Final answer
   x = 205,041.59