Finding the Fourth Proportional to 102,679,145.43, 141,697,345.30 and 55,636,181.81

Step by Step Solution

1. Step 1: Write the proportion equation
   102,679,145.43 : 141,697,345.30 = 55,636,181.81 : x
2. Step 2: Convert to fraction form
   102,679,145.43/141,697,345.30 = 55,636,181.81/x
3. Step 3: Cross multiply
   102,679,145.43x = 141,697,345.30 × 55,636,181.81
4. Step 4: Simplify right side
   102,679,145.43x = 7,883,499,265,320,303
5. Step 5: Solve for x
   x = 7,883,499,265,320,303/102,679,145.43
6. Step 6: Final answer
   x = 76,777,998.42