Finding the Fourth Proportional to 42,791,125.76, 64,184,326.01 and 31,288,380.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,791,125.76 : 64,184,326.01 = 31,288,380.56 : x
2. Step 2: Convert to fraction form
   42,791,125.76/64,184,326.01 = 31,288,380.56/x
3. Step 3: Cross multiply
   42,791,125.76x = 64,184,326.01 × 31,288,380.56
4. Step 4: Simplify right side
   42,791,125.76x = 2,008,223,618,187,986.25
5. Step 5: Solve for x
   x = 2,008,223,618,187,986.25/42,791,125.76
6. Step 6: Final answer
   x = 46,930,843.31