Finding the Fourth Proportional to 101,042,469.28, 139,437,796.17 and 58,659,961.78

Step by Step Solution

1. Step 1: Write the proportion equation
   101,042,469.28 : 139,437,796.17 = 58,659,961.78 : x
2. Step 2: Convert to fraction form
   101,042,469.28/139,437,796.17 = 58,659,961.78/x
3. Step 3: Cross multiply
   101,042,469.28x = 139,437,796.17 × 58,659,961.78
4. Step 4: Simplify right side
   101,042,469.28x = 8,179,415,794,019,630
5. Step 5: Solve for x
   x = 8,179,415,794,019,630/101,042,469.28
6. Step 6: Final answer
   x = 80,950,276.18