Finding the Fourth Proportional to 142,501, 196,634.34 and 78,830.14

Step by Step Solution

1. Step 1: Write the proportion equation
   142,501 : 196,634.34 = 78,830.14 : x
2. Step 2: Convert to fraction form
   142,501/196,634.34 = 78,830.14/x
3. Step 3: Cross multiply
   142,501x = 196,634.34 × 78,830.14
4. Step 4: Simplify right side
   142,501x = 15,500,712,551.01
5. Step 5: Solve for x
   x = 15,500,712,551.01/142,501
6. Step 6: Final answer
   x = 108,776.17