Finding the Fourth Proportional to 101,408.10, 152,371.35 and 90,003.30

Step by Step Solution

1. Step 1: Write the proportion equation
   101,408.10 : 152,371.35 = 90,003.30 : x
2. Step 2: Convert to fraction form
   101,408.10/152,371.35 = 90,003.30/x
3. Step 3: Cross multiply
   101,408.10x = 152,371.35 × 90,003.30
4. Step 4: Simplify right side
   101,408.10x = 13,713,924,325.46
5. Step 5: Solve for x
   x = 13,713,924,325.46/101,408.10
6. Step 6: Final answer
   x = 135,235.00