Finding the Fourth Proportional to 142,261,786.58, 196,321,464.69 and 77,071,690.58

Step by Step Solution

1. Step 1: Write the proportion equation
   142,261,786.58 : 196,321,464.69 = 77,071,690.58 : x
2. Step 2: Convert to fraction form
   142,261,786.58/196,321,464.69 = 77,071,690.58/x
3. Step 3: Cross multiply
   142,261,786.58x = 196,321,464.69 × 77,071,690.58
4. Step 4: Simplify right side
   142,261,786.58x = 15,130,827,180,800,076
5. Step 5: Solve for x
   x = 15,130,827,180,800,076/142,261,786.58
6. Step 6: Final answer
   x = 106,359,040.92