Finding the Fourth Proportional to 141,802.47, 195,688.72 and 78,142.54

Step by Step Solution

1. Step 1: Write the proportion equation
   141,802.47 : 195,688.72 = 78,142.54 : x
2. Step 2: Convert to fraction form
   141,802.47/195,688.72 = 78,142.54/x
3. Step 3: Cross multiply
   141,802.47x = 195,688.72 × 78,142.54
4. Step 4: Simplify right side
   141,802.47x = 15,291,613,532.89
5. Step 5: Solve for x
   x = 15,291,613,532.89/141,802.47
6. Step 6: Final answer
   x = 107,837.43