Finding the Fourth Proportional to 56,850,728.42, 78,454,240 and 30,745,245.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,850,728.42 : 78,454,240 = 30,745,245.72 : x
2. Step 2: Convert to fraction form
   56,850,728.42/78,454,240 = 30,745,245.72/x
3. Step 3: Cross multiply
   56,850,728.42x = 78,454,240 × 30,745,245.72
4. Step 4: Simplify right side
   56,850,728.42x = 2,412,094,886,575,852.50
5. Step 5: Solve for x
   x = 2,412,094,886,575,852.50/56,850,728.42
6. Step 6: Final answer
   x = 42,428,566.06