Finding the Fourth Proportional to 56,818,514.45, 78,409,573.17 and 30,713,032.20

Step by Step Solution

1. Step 1: Write the proportion equation
   56,818,514.45 : 78,409,573.17 = 30,713,032.20 : x
2. Step 2: Convert to fraction form
   56,818,514.45/78,409,573.17 = 30,713,032.20/x
3. Step 3: Cross multiply
   56,818,514.45x = 78,409,573.17 × 30,713,032.20
4. Step 4: Simplify right side
   56,818,514.45x = 2,408,195,745,737,328
5. Step 5: Solve for x
   x = 2,408,195,745,737,328/56,818,514.45
6. Step 6: Final answer
   x = 42,383,996.99