Finding the Fourth Proportional to 31,437.89, 47,146.83 and 10,374.00

Step by Step Solution

1. Step 1: Write the proportion equation
   31,437.89 : 47,146.83 = 10,374.00 : x
2. Step 2: Convert to fraction form
   31,437.89/47,146.83 = 10,374.00/x
3. Step 3: Cross multiply
   31,437.89x = 47,146.83 × 10,374.00
4. Step 4: Simplify right side
   31,437.89x = 489,101,131.32
5. Step 5: Solve for x
   x = 489,101,131.32/31,437.89
6. Step 6: Final answer
   x = 15,557.70