Finding the Fourth Proportional to 103,078,848, 142,245,185.76 and 56,668,764

Step by Step Solution

1. Step 1: Write the proportion equation
   103,078,848 : 142,245,185.76 = 56,668,764 : x
2. Step 2: Convert to fraction form
   103,078,848/142,245,185.76 = 56,668,764/x
3. Step 3: Cross multiply
   103,078,848x = 142,245,185.76 × 56,668,764
4. Step 4: Simplify right side
   103,078,848x = 8,060,858,861,969,600
5. Step 5: Solve for x
   x = 8,060,858,861,969,600/103,078,848
6. Step 6: Final answer
   x = 78,200,901.72