Finding the Fourth Proportional to 190,317,997.17, 262,651,831.61 and 107,812,459.89

Step by Step Solution

1. Step 1: Write the proportion equation
   190,317,997.17 : 262,651,831.61 = 107,812,459.89 : x
2. Step 2: Convert to fraction form
   190,317,997.17/262,651,831.61 = 107,812,459.89/x
3. Step 3: Cross multiply
   190,317,997.17x = 262,651,831.61 × 107,812,459.89
4. Step 4: Simplify right side
   190,317,997.17x = 28,317,140,059,949,096
5. Step 5: Solve for x
   x = 28,317,140,059,949,096/190,317,997.17
6. Step 6: Final answer
   x = 148,788,556.42