Finding the Fourth Proportional to 37,761.23, 56,617 and 21,123.02

Step by Step Solution

1. Step 1: Write the proportion equation
   37,761.23 : 56,617 = 21,123.02 : x
2. Step 2: Convert to fraction form
   37,761.23/56,617 = 21,123.02/x
3. Step 3: Cross multiply
   37,761.23x = 56,617 × 21,123.02
4. Step 4: Simplify right side
   37,761.23x = 1,195,922,023.34
5. Step 5: Solve for x
   x = 1,195,922,023.34/37,761.23
6. Step 6: Final answer
   x = 31,670.63