Finding the Fourth Proportional to 103,012.56, 154,520.89 and 67,699.00

Step by Step Solution

1. Step 1: Write the proportion equation
   103,012.56 : 154,520.89 = 67,699.00 : x
2. Step 2: Convert to fraction form
   103,012.56/154,520.89 = 67,699.00/x
3. Step 3: Cross multiply
   103,012.56x = 154,520.89 × 67,699.00
4. Step 4: Simplify right side
   103,012.56x = 10,460,910,163.71
5. Step 5: Solve for x
   x = 10,460,910,163.71/103,012.56
6. Step 6: Final answer
   x = 101,549.85