Finding the Fourth Proportional to 142,100.58, 196,098.12 and 78,437.82

Step by Step Solution

1. Step 1: Write the proportion equation
   142,100.58 : 196,098.12 = 78,437.82 : x
2. Step 2: Convert to fraction form
   142,100.58/196,098.12 = 78,437.82/x
3. Step 3: Cross multiply
   142,100.58x = 196,098.12 × 78,437.82
4. Step 4: Simplify right side
   142,100.58x = 15,381,509,038.90
5. Step 5: Solve for x
   x = 15,381,509,038.90/142,100.58
6. Step 6: Final answer
   x = 108,243.82