Finding the Fourth Proportional to 104,196.88, 156,229.04 and 88,407.28

Step by Step Solution

1. Step 1: Write the proportion equation
   104,196.88 : 156,229.04 = 88,407.28 : x
2. Step 2: Convert to fraction form
   104,196.88/156,229.04 = 88,407.28/x
3. Step 3: Cross multiply
   104,196.88x = 156,229.04 × 88,407.28
4. Step 4: Simplify right side
   104,196.88x = 13,811,784,483.41
5. Step 5: Solve for x
   x = 13,811,784,483.41/104,196.88
6. Step 6: Final answer
   x = 132,554.68