Finding the Fourth Proportional to 67,916.91, 93,725.70 and 42,438.07

Step by Step Solution

1. Step 1: Write the proportion equation
   67,916.91 : 93,725.70 = 42,438.07 : x
2. Step 2: Convert to fraction form
   67,916.91/93,725.70 = 42,438.07/x
3. Step 3: Cross multiply
   67,916.91x = 93,725.70 × 42,438.07
4. Step 4: Simplify right side
   67,916.91x = 3,977,537,540.69
5. Step 5: Solve for x
   x = 3,977,537,540.69/67,916.91
6. Step 6: Final answer
   x = 58,564.76