Finding the Fourth Proportional to 59,537.99, 89,328.86 and 42,916.79

Step by Step Solution

1. Step 1: Write the proportion equation
   59,537.99 : 89,328.86 = 42,916.79 : x
2. Step 2: Convert to fraction form
   59,537.99/89,328.86 = 42,916.79/x
3. Step 3: Cross multiply
   59,537.99x = 89,328.86 × 42,916.79
4. Step 4: Simplify right side
   59,537.99x = 3,833,707,925.56
5. Step 5: Solve for x
   x = 3,833,707,925.56/59,537.99
6. Step 6: Final answer
   x = 64,390.95