Finding the Fourth Proportional to 260,322,164.28, 359,243,598.96 and 142,849,459.98

Step by Step Solution

1. Step 1: Write the proportion equation
   260,322,164.28 : 359,243,598.96 = 142,849,459.98 : x
2. Step 2: Convert to fraction form
   260,322,164.28/359,243,598.96 = 142,849,459.98/x
3. Step 3: Cross multiply
   260,322,164.28x = 359,243,598.96 × 142,849,459.98
4. Step 4: Simplify right side
   260,322,164.28x = 51,317,754,112,707,680
5. Step 5: Solve for x
   x = 51,317,754,112,707,680/260,322,164.28
6. Step 6: Final answer
   x = 197,131,712.76