Finding the Fourth Proportional to 142,684,399.96, 196,905,479.71 and 77,494,303.96

Step by Step Solution

1. Step 1: Write the proportion equation
   142,684,399.96 : 196,905,479.71 = 77,494,303.96 : x
2. Step 2: Convert to fraction form
   142,684,399.96/196,905,479.71 = 77,494,303.96/x
3. Step 3: Cross multiply
   142,684,399.96x = 196,905,479.71 × 77,494,303.96
4. Step 4: Simplify right side
   142,684,399.96x = 15,259,053,095,051,826
5. Step 5: Solve for x
   x = 15,259,053,095,051,826/142,684,399.96
6. Step 6: Final answer
   x = 106,942,686.80