Finding the Fourth Proportional to 156,189.27, 215,541.33 and 84,569.34

Step by Step Solution

1. Step 1: Write the proportion equation
   156,189.27 : 215,541.33 = 84,569.34 : x
2. Step 2: Convert to fraction form
   156,189.27/215,541.33 = 84,569.34/x
3. Step 3: Cross multiply
   156,189.27x = 215,541.33 × 84,569.34
4. Step 4: Simplify right side
   156,189.27x = 18,228,188,020.82
5. Step 5: Solve for x
   x = 18,228,188,020.82/156,189.27
6. Step 6: Final answer
   x = 116,705.76