Finding the Fourth Proportional to 152,030.32, 209,861.04 and 136,087.20

Step by Step Solution

1. Step 1: Write the proportion equation
   152,030.32 : 209,861.04 = 136,087.20 : x
2. Step 2: Convert to fraction form
   152,030.32/209,861.04 = 136,087.20/x
3. Step 3: Cross multiply
   152,030.32x = 209,861.04 × 136,087.20
4. Step 4: Simplify right side
   152,030.32x = 28,559,401,322.69
5. Step 5: Solve for x
   x = 28,559,401,322.69/152,030.32
6. Step 6: Final answer
   x = 187,853.33