Finding the Fourth Proportional to 156,636.58, 234,753.72 and 71,185

Step by Step Solution

1. Step 1: Write the proportion equation
   156,636.58 : 234,753.72 = 71,185 : x
2. Step 2: Convert to fraction form
   156,636.58/234,753.72 = 71,185/x
3. Step 3: Cross multiply
   156,636.58x = 234,753.72 × 71,185
4. Step 4: Simplify right side
   156,636.58x = 16,710,943,558.20
5. Step 5: Solve for x
   x = 16,710,943,558.20/156,636.58
6. Step 6: Final answer
   x = 106,686.09