Finding the Fourth Proportional to 31,142,087.76, 42,952,196.22 and 18,739,251.40

Step by Step Solution

1. Step 1: Write the proportion equation
   31,142,087.76 : 42,952,196.22 = 18,739,251.40 : x
2. Step 2: Convert to fraction form
   31,142,087.76/42,952,196.22 = 18,739,251.40/x
3. Step 3: Cross multiply
   31,142,087.76x = 42,952,196.22 × 18,739,251.40
4. Step 4: Simplify right side
   31,142,087.76x = 804,892,003,148,709.62
5. Step 5: Solve for x
   x = 804,892,003,148,709.62/31,142,087.76
6. Step 6: Final answer
   x = 25,845,794.58