Finding the Fourth Proportional to 400,870.08, 601,360.32 and 134,706.72

Step by Step Solution

1. Step 1: Write the proportion equation
   400,870.08 : 601,360.32 = 134,706.72 : x
2. Step 2: Convert to fraction form
   400,870.08/601,360.32 = 134,706.72/x
3. Step 3: Cross multiply
   400,870.08x = 601,360.32 × 134,706.72
4. Step 4: Simplify right side
   400,870.08x = 81,007,276,245.35
5. Step 5: Solve for x
   x = 81,007,276,245.35/400,870.08
6. Step 6: Final answer
   x = 202,078.63