Finding the Fourth Proportional to 30,611,814.72, 42,244,302.16 and 16,860,778.80

Step by Step Solution

1. Step 1: Write the proportion equation
   30,611,814.72 : 42,244,302.16 = 16,860,778.80 : x
2. Step 2: Convert to fraction form
   30,611,814.72/42,244,302.16 = 16,860,778.80/x
3. Step 3: Cross multiply
   30,611,814.72x = 42,244,302.16 × 16,860,778.80
4. Step 4: Simplify right side
   30,611,814.72x = 712,271,834,280,122.12
5. Step 5: Solve for x
   x = 712,271,834,280,122.12/30,611,814.72
6. Step 6: Final answer
   x = 23,267,873.56