Finding the Fourth Proportional to 78,096,388.30, 107,770,680.18 and 42,812,986.73

Step by Step Solution

1. Step 1: Write the proportion equation
   78,096,388.30 : 107,770,680.18 = 42,812,986.73 : x
2. Step 2: Convert to fraction form
   78,096,388.30/107,770,680.18 = 42,812,986.73/x
3. Step 3: Cross multiply
   78,096,388.30x = 107,770,680.18 × 42,812,986.73
4. Step 4: Simplify right side
   78,096,388.30x = 4,613,984,699,890,561
5. Step 5: Solve for x
   x = 4,613,984,699,890,561/78,096,388.30
6. Step 6: Final answer
   x = 59,080,641.25