Finding the Fourth Proportional to 156,664.76, 216,196.83 and 85,044.27

Step by Step Solution

1. Step 1: Write the proportion equation
   156,664.76 : 216,196.83 = 85,044.27 : x
2. Step 2: Convert to fraction form
   156,664.76/216,196.83 = 85,044.27/x
3. Step 3: Cross multiply
   156,664.76x = 216,196.83 × 85,044.27
4. Step 4: Simplify right side
   156,664.76x = 18,386,301,233.05
5. Step 5: Solve for x
   x = 18,386,301,233.05/156,664.76
6. Step 6: Final answer
   x = 117,360.80