Finding the Fourth Proportional to 67,378,978.60, 101,068,139.85 and 26,409,470.20

Step by Step Solution

1. Step 1: Write the proportion equation
   67,378,978.60 : 101,068,139.85 = 26,409,470.20 : x
2. Step 2: Convert to fraction form
   67,378,978.60/101,068,139.85 = 26,409,470.20/x
3. Step 3: Cross multiply
   67,378,978.60x = 101,068,139.85 × 26,409,470.20
4. Step 4: Simplify right side
   67,378,978.60x = 2,669,156,027,538,007
5. Step 5: Solve for x
   x = 2,669,156,027,538,007/67,378,978.60
6. Step 6: Final answer
   x = 39,614,076.72