Finding the Fourth Proportional to 101,365,763.50, 139,906,633.37 and 61,686,078.83

Step by Step Solution

1. Step 1: Write the proportion equation
   101,365,763.50 : 139,906,633.37 = 61,686,078.83 : x
2. Step 2: Convert to fraction form
   101,365,763.50/139,906,633.37 = 61,686,078.83/x
3. Step 3: Cross multiply
   101,365,763.50x = 139,906,633.37 × 61,686,078.83
4. Step 4: Simplify right side
   101,365,763.50x = 8,630,291,614,901,729
5. Step 5: Solve for x
   x = 8,630,291,614,901,729/101,365,763.50
6. Step 6: Final answer
   x = 85,140,103.69