Finding the Fourth Proportional to 31,042,458.78, 42,838,635.60 and 16,913,574.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,042,458.78 : 42,838,635.60 = 16,913,574.96 : x
2. Step 2: Convert to fraction form
   31,042,458.78/42,838,635.60 = 16,913,574.96/x
3. Step 3: Cross multiply
   31,042,458.78x = 42,838,635.60 × 16,913,574.96
4. Step 4: Simplify right side
   31,042,458.78x = 724,554,474,404,724.62
5. Step 5: Solve for x
   x = 724,554,474,404,724.62/31,042,458.78
6. Step 6: Final answer
   x = 23,340,756.59