Finding the Fourth Proportional to 142,314,158.76, 196,393,706.98 and 77,124,062.76

Step by Step Solution

1. Step 1: Write the proportion equation
   142,314,158.76 : 196,393,706.98 = 77,124,062.76 : x
2. Step 2: Convert to fraction form
   142,314,158.76/196,393,706.98 = 77,124,062.76/x
3. Step 3: Cross multiply
   142,314,158.76x = 196,393,706.98 × 77,124,062.76
4. Step 4: Simplify right side
   142,314,158.76x = 15,146,680,582,794,570
5. Step 5: Solve for x
   x = 15,146,680,582,794,570/142,314,158.76
6. Step 6: Final answer
   x = 106,431,297.59