Finding the Fourth Proportional to 99,003, 148,132.50 and 69,478.44

Step by Step Solution

1. Step 1: Write the proportion equation
   99,003 : 148,132.50 = 69,478.44 : x
2. Step 2: Convert to fraction form
   99,003/148,132.50 = 69,478.44/x
3. Step 3: Cross multiply
   99,003x = 148,132.50 × 69,478.44
4. Step 4: Simplify right side
   99,003x = 10,292,015,013.30
5. Step 5: Solve for x
   x = 10,292,015,013.30/99,003
6. Step 6: Final answer
   x = 103,956.60