Finding the Fourth Proportional to 72,322,906.18, 99,806,419.31 and 42,560,134.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,322,906.18 : 99,806,419.31 = 42,560,134.24 : x
2. Step 2: Convert to fraction form
   72,322,906.18/99,806,419.31 = 42,560,134.24/x
3. Step 3: Cross multiply
   72,322,906.18x = 99,806,419.31 × 42,560,134.24
4. Step 4: Simplify right side
   72,322,906.18x = 4,247,774,603,704,212
5. Step 5: Solve for x
   x = 4,247,774,603,704,212/72,322,906.18
6. Step 6: Final answer
   x = 58,733,461.20