Finding the Fourth Proportional to 31,389,402.48, 47,093,108.69 and 13,184,234.92

Step by Step Solution

1. Step 1: Write the proportion equation
   31,389,402.48 : 47,093,108.69 = 13,184,234.92 : x
2. Step 2: Convert to fraction form
   31,389,402.48/47,093,108.69 = 13,184,234.92/x
3. Step 3: Cross multiply
   31,389,402.48x = 47,093,108.69 × 13,184,234.92
4. Step 4: Simplify right side
   31,389,402.48x = 620,886,608,082,053.38
5. Step 5: Solve for x
   x = 620,886,608,082,053.38/31,389,402.48
6. Step 6: Final answer
   x = 19,780,134.66