Finding the Fourth Proportional to 56,894,868.92, 78,515,113.25 and 30,789,379.82

Step by Step Solution

1. Step 1: Write the proportion equation
   56,894,868.92 : 78,515,113.25 = 30,789,379.82 : x
2. Step 2: Convert to fraction form
   56,894,868.92/78,515,113.25 = 30,789,379.82/x
3. Step 3: Cross multiply
   56,894,868.92x = 78,515,113.25 × 30,789,379.82
4. Step 4: Simplify right side
   56,894,868.92x = 2,417,431,643,464,564.50
5. Step 5: Solve for x
   x = 2,417,431,643,464,564.50/56,894,868.92
6. Step 6: Final answer
   x = 42,489,449.21