Finding the Fourth Proportional to 99,413, 149,063.03 and 67,861.28

Step by Step Solution

1. Step 1: Write the proportion equation
   99,413 : 149,063.03 = 67,861.28 : x
2. Step 2: Convert to fraction form
   99,413/149,063.03 = 67,861.28/x
3. Step 3: Cross multiply
   99,413x = 149,063.03 × 67,861.28
4. Step 4: Simplify right side
   99,413x = 10,115,608,016.48
5. Step 5: Solve for x
   x = 10,115,608,016.48/99,413
6. Step 6: Final answer
   x = 101,753.37