Finding the Fourth Proportional to 12,093,031.56, 18,139,434.75 and 4,902,856.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,093,031.56 : 18,139,434.75 = 4,902,856.37 : x
2. Step 2: Convert to fraction form
   12,093,031.56/18,139,434.75 = 4,902,856.37/x
3. Step 3: Cross multiply
   12,093,031.56x = 18,139,434.75 × 4,902,856.37
4. Step 4: Simplify right side
   12,093,031.56x = 88,935,043,212,236.86
5. Step 5: Solve for x
   x = 88,935,043,212,236.86/12,093,031.56
6. Step 6: Final answer
   x = 7,354,238.91