Finding the Fourth Proportional to 56,870,187.96, 78,480,621.72 and 30,764,640.84

Step by Step Solution

1. Step 1: Write the proportion equation
   56,870,187.96 : 78,480,621.72 = 30,764,640.84 : x
2. Step 2: Convert to fraction form
   56,870,187.96/78,480,621.72 = 30,764,640.84/x
3. Step 3: Cross multiply
   56,870,187.96x = 78,480,621.72 × 30,764,640.84
4. Step 4: Simplify right side
   56,870,187.96x = 2,414,428,140,115,703
5. Step 5: Solve for x
   x = 2,414,428,140,115,703/56,870,187.96
6. Step 6: Final answer
   x = 42,455,075.79