Finding the Fourth Proportional to 42,791,126.76, 64,184,327.51 and 31,288,381.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,791,126.76 : 64,184,327.51 = 31,288,381.56 : x
2. Step 2: Convert to fraction form
   42,791,126.76/64,184,327.51 = 31,288,381.56/x
3. Step 3: Cross multiply
   42,791,126.76x = 64,184,327.51 × 31,288,381.56
4. Step 4: Simplify right side
   42,791,126.76x = 2,008,223,729,304,884.50
5. Step 5: Solve for x
   x = 2,008,223,729,304,884.50/42,791,126.76
6. Step 6: Final answer
   x = 46,930,844.81