Finding the Fourth Proportional to 139,594.32, 209,270.52 and 56,434.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,594.32 : 209,270.52 = 56,434.32 : x
2. Step 2: Convert to fraction form
   139,594.32/209,270.52 = 56,434.32/x
3. Step 3: Cross multiply
   139,594.32x = 209,270.52 × 56,434.32
4. Step 4: Simplify right side
   139,594.32x = 11,810,039,492.25
5. Step 5: Solve for x
   x = 11,810,039,492.25/139,594.32
6. Step 6: Final answer
   x = 84,602.58