Finding the Fourth Proportional to 31,756.86, 47,544.57 and 21,349.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,756.86 : 47,544.57 = 21,349.98 : x
2. Step 2: Convert to fraction form
   31,756.86/47,544.57 = 21,349.98/x
3. Step 3: Cross multiply
   31,756.86x = 47,544.57 × 21,349.98
4. Step 4: Simplify right side
   31,756.86x = 1,015,075,618.61
5. Step 5: Solve for x
   x = 1,015,075,618.61/31,756.86
6. Step 6: Final answer
   x = 31,963.98