Finding the Fourth Proportional to 60,737.96, 91,109.72 and 18,615

Step by Step Solution

1. Step 1: Write the proportion equation
   60,737.96 : 91,109.72 = 18,615 : x
2. Step 2: Convert to fraction form
   60,737.96/91,109.72 = 18,615/x
3. Step 3: Cross multiply
   60,737.96x = 91,109.72 × 18,615
4. Step 4: Simplify right side
   60,737.96x = 1,696,007,437.80
5. Step 5: Solve for x
   x = 1,696,007,437.80/60,737.96
6. Step 6: Final answer
   x = 27,923.35