Finding the Fourth Proportional to 60,863,821.75, 91,309,729.69 and 19,924,581.43

Step by Step Solution

1. Step 1: Write the proportion equation
   60,863,821.75 : 91,309,729.69 = 19,924,581.43 : x
2. Step 2: Convert to fraction form
   60,863,821.75/91,309,729.69 = 19,924,581.43/x
3. Step 3: Cross multiply
   60,863,821.75x = 91,309,729.69 × 19,924,581.43
4. Step 4: Simplify right side
   60,863,821.75x = 1,819,308,144,103,145
5. Step 5: Solve for x
   x = 1,819,308,144,103,145/60,863,821.75
6. Step 6: Final answer
   x = 29,891,454.27