Finding the Fourth Proportional to 42,791,123.74, 64,184,323.03 and 31,288,378.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,791,123.74 : 64,184,323.03 = 31,288,378.54 : x
2. Step 2: Convert to fraction form
   42,791,123.74/64,184,323.03 = 31,288,378.54/x
3. Step 3: Cross multiply
   42,791,123.74x = 64,184,323.03 × 31,288,378.54
4. Step 4: Simplify right side
   42,791,123.74x = 2,008,223,395,296,279.75
5. Step 5: Solve for x
   x = 2,008,223,395,296,279.75/42,791,123.74
6. Step 6: Final answer
   x = 46,930,840.32