Finding the Fourth Proportional to 59,424.31, 89,106.78 and 19,438.07

Step by Step Solution

1. Step 1: Write the proportion equation
   59,424.31 : 89,106.78 = 19,438.07 : x
2. Step 2: Convert to fraction form
   59,424.31/89,106.78 = 19,438.07/x
3. Step 3: Cross multiply
   59,424.31x = 89,106.78 × 19,438.07
4. Step 4: Simplify right side
   59,424.31x = 1,732,063,827.11
5. Step 5: Solve for x
   x = 1,732,063,827.11/59,424.31
6. Step 6: Final answer
   x = 29,147.40