Finding the Fourth Proportional to 72,869,978.90, 109,324,112.01 and 26,188,177.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,869,978.90 : 109,324,112.01 = 26,188,177.88 : x
2. Step 2: Convert to fraction form
   72,869,978.90/109,324,112.01 = 26,188,177.88/x
3. Step 3: Cross multiply
   72,869,978.90x = 109,324,112.01 × 26,188,177.88
4. Step 4: Simplify right side
   72,869,978.90x = 2,862,999,291,890,924.50
5. Step 5: Solve for x
   x = 2,862,999,291,890,924.50/72,869,978.90
6. Step 6: Final answer
   x = 39,289,146.71