Finding the Fourth Proportional to 31,947,006.37, 47,942,071.55 and 12,513,821.83

Step by Step Solution

1. Step 1: Write the proportion equation
   31,947,006.37 : 47,942,071.55 = 12,513,821.83 : x
2. Step 2: Convert to fraction form
   31,947,006.37/47,942,071.55 = 12,513,821.83/x
3. Step 3: Cross multiply
   31,947,006.37x = 47,942,071.55 × 12,513,821.83
4. Step 4: Simplify right side
   31,947,006.37x = 599,938,541,475,242.88
5. Step 5: Solve for x
   x = 599,938,541,475,242.88/31,947,006.37
6. Step 6: Final answer
   x = 18,779,178.70