Finding the Fourth Proportional to 30,612,139.56, 42,244,750.23 and 16,861,103.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,612,139.56 : 42,244,750.23 = 16,861,103.69 : x
2. Step 2: Convert to fraction form
   30,612,139.56/42,244,750.23 = 16,861,103.69/x
3. Step 3: Cross multiply
   30,612,139.56x = 42,244,750.23 × 16,861,103.69
4. Step 4: Simplify right side
   30,612,139.56x = 712,293,113,774,957.50
5. Step 5: Solve for x
   x = 712,293,113,774,957.50/30,612,139.56
6. Step 6: Final answer
   x = 23,268,321.78