Finding the Fourth Proportional to 28,365,082.39, 42,479,443.05 and 16,197,707.89

Step by Step Solution

1. Step 1: Write the proportion equation
   28,365,082.39 : 42,479,443.05 = 16,197,707.89 : x
2. Step 2: Convert to fraction form
   28,365,082.39/42,479,443.05 = 16,197,707.89/x
3. Step 3: Cross multiply
   28,365,082.39x = 42,479,443.05 × 16,197,707.89
4. Step 4: Simplify right side
   28,365,082.39x = 688,069,609,853,790.62
5. Step 5: Solve for x
   x = 688,069,609,853,790.62/28,365,082.39
6. Step 6: Final answer
   x = 24,257,627.75