Finding the Fourth Proportional to 35,860,353.30, 49,487,056.56 and 20,390,436.72

Step by Step Solution

1. Step 1: Write the proportion equation
   35,860,353.30 : 49,487,056.56 = 20,390,436.72 : x
2. Step 2: Convert to fraction form
   35,860,353.30/49,487,056.56 = 20,390,436.72/x
3. Step 3: Cross multiply
   35,860,353.30x = 49,487,056.56 × 20,390,436.72
4. Step 4: Simplify right side
   35,860,353.30x = 1,009,062,695,245,740.88
5. Step 5: Solve for x
   x = 1,009,062,695,245,740.88/35,860,353.30
6. Step 6: Final answer
   x = 28,138,671.33