Finding the Fourth Proportional to 56,894,867.92, 78,515,111.87 and 30,789,378.82

Step by Step Solution

1. Step 1: Write the proportion equation
   56,894,867.92 : 78,515,111.87 = 30,789,378.82 : x
2. Step 2: Convert to fraction form
   56,894,867.92/78,515,111.87 = 30,789,378.82/x
3. Step 3: Cross multiply
   56,894,867.92x = 78,515,111.87 × 30,789,378.82
4. Step 4: Simplify right side
   56,894,867.92x = 2,417,431,522,460,109
5. Step 5: Solve for x
   x = 2,417,431,522,460,109/56,894,867.92
6. Step 6: Final answer
   x = 42,489,447.83