Finding the Fourth Proportional to 31,042,459.78, 42,838,636.98 and 16,913,575.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,042,459.78 : 42,838,636.98 = 16,913,575.96 : x
2. Step 2: Convert to fraction form
   31,042,459.78/42,838,636.98 = 16,913,575.96/x
3. Step 3: Cross multiply
   31,042,459.78x = 42,838,636.98 × 16,913,575.96
4. Step 4: Simplify right side
   31,042,459.78x = 724,554,540,584,095
5. Step 5: Solve for x
   x = 724,554,540,584,095/31,042,459.78
6. Step 6: Final answer
   x = 23,340,757.97