Finding the Fourth Proportional to 103,457, 142,790.46 and 67,585.16

Step by Step Solution

1. Step 1: Write the proportion equation
   103,457 : 142,790.46 = 67,585.16 : x
2. Step 2: Convert to fraction form
   103,457/142,790.46 = 67,585.16/x
3. Step 3: Cross multiply
   103,457x = 142,790.46 × 67,585.16
4. Step 4: Simplify right side
   103,457x = 9,650,516,085.57
5. Step 5: Solve for x
   x = 9,650,516,085.57/103,457
6. Step 6: Final answer
   x = 93,280.46