Finding the Fourth Proportional to 79,440,776.14, 119,160,987.90 and 21,148,468.42

Step by Step Solution

1. Step 1: Write the proportion equation
   79,440,776.14 : 119,160,987.90 = 21,148,468.42 : x
2. Step 2: Convert to fraction form
   79,440,776.14/119,160,987.90 = 21,148,468.42/x
3. Step 3: Cross multiply
   79,440,776.14x = 119,160,987.90 × 21,148,468.42
4. Step 4: Simplify right side
   79,440,776.14x = 2,520,072,389,499,152.50
5. Step 5: Solve for x
   x = 2,520,072,389,499,152.50/79,440,776.14
6. Step 6: Final answer
   x = 31,722,655.69