Finding the Fourth Proportional to 142,072,089, 196,059,482.98 and 76,881,993

Step by Step Solution

1. Step 1: Write the proportion equation
   142,072,089 : 196,059,482.98 = 76,881,993 : x
2. Step 2: Convert to fraction form
   142,072,089/196,059,482.98 = 76,881,993/x
3. Step 3: Cross multiply
   142,072,089x = 196,059,482.98 × 76,881,993
4. Step 4: Simplify right side
   142,072,089x = 15,073,443,798,051,978
5. Step 5: Solve for x
   x = 15,073,443,798,051,978/142,072,089
6. Step 6: Final answer
   x = 106,097,150.43