Finding the Fourth Proportional to 23,198,139.21, 32,009,873.32 and 13,406,692.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,198,139.21 : 32,009,873.32 = 13,406,692.42 : x
2. Step 2: Convert to fraction form
   23,198,139.21/32,009,873.32 = 13,406,692.42/x
3. Step 3: Cross multiply
   23,198,139.21x = 32,009,873.32 × 13,406,692.42
4. Step 4: Simplify right side
   23,198,139.21x = 429,146,526,061,174.94
5. Step 5: Solve for x
   x = 429,146,526,061,174.94/23,198,139.21
6. Step 6: Final answer
   x = 18,499,178.85