Finding the Fourth Proportional to 260,321,892.32, 359,243,225.91 and 142,849,188.42

Step by Step Solution

1. Step 1: Write the proportion equation
   260,321,892.32 : 359,243,225.91 = 142,849,188.42 : x
2. Step 2: Convert to fraction form
   260,321,892.32/359,243,225.91 = 142,849,188.42/x
3. Step 3: Cross multiply
   260,321,892.32x = 359,243,225.91 × 142,849,188.42
4. Step 4: Simplify right side
   260,321,892.32x = 51,317,603,266,626,216
5. Step 5: Solve for x
   x = 51,317,603,266,626,216/260,321,892.32
6. Step 6: Final answer
   x = 197,131,339.24