Finding the Fourth Proportional to 156,630.32, 216,150.06 and 85,010.34

Step by Step Solution

1. Step 1: Write the proportion equation
   156,630.32 : 216,150.06 = 85,010.34 : x
2. Step 2: Convert to fraction form
   156,630.32/216,150.06 = 85,010.34/x
3. Step 3: Cross multiply
   156,630.32x = 216,150.06 × 85,010.34
4. Step 4: Simplify right side
   156,630.32x = 18,374,990,167.30
5. Step 5: Solve for x
   x = 18,374,990,167.30/156,630.32
6. Step 6: Final answer
   x = 117,314.39