Finding the Fourth Proportional to 56,893,124.99, 78,512,512.46 and 30,787,642.78

Step by Step Solution

1. Step 1: Write the proportion equation
   56,893,124.99 : 78,512,512.46 = 30,787,642.78 : x
2. Step 2: Convert to fraction form
   56,893,124.99/78,512,512.46 = 30,787,642.78/x
3. Step 3: Cross multiply
   56,893,124.99x = 78,512,512.46 × 30,787,642.78
4. Step 4: Simplify right side
   56,893,124.99x = 2,417,215,187,028,559.50
5. Step 5: Solve for x
   x = 2,417,215,187,028,559.50/56,893,124.99
6. Step 6: Final answer
   x = 42,486,947.01