Finding the Fourth Proportional to 31,142,291.31, 42,977,667.71 and 17,911,471.86

Step by Step Solution

1. Step 1: Write the proportion equation
   31,142,291.31 : 42,977,667.71 = 17,911,471.86 : x
2. Step 2: Convert to fraction form
   31,142,291.31/42,977,667.71 = 17,911,471.86/x
3. Step 3: Cross multiply
   31,142,291.31x = 42,977,667.71 × 17,911,471.86
4. Step 4: Simplify right side
   31,142,291.31x = 769,793,285,840,874.25
5. Step 5: Solve for x
   x = 769,793,285,840,874.25/31,142,291.31
6. Step 6: Final answer
   x = 24,718,582.14