Finding the Fourth Proportional to 33,131,094.10, 49,667,092.35 and 12,931,638.10

Step by Step Solution

1. Step 1: Write the proportion equation
   33,131,094.10 : 49,667,092.35 = 12,931,638.10 : x
2. Step 2: Convert to fraction form
   33,131,094.10/49,667,092.35 = 12,931,638.10/x
3. Step 3: Cross multiply
   33,131,094.10x = 49,667,092.35 × 12,931,638.10
4. Step 4: Simplify right side
   33,131,094.10x = 642,276,863,749,478.50
5. Step 5: Solve for x
   x = 642,276,863,749,478.50/33,131,094.10
6. Step 6: Final answer
   x = 19,385,923.74