Finding the Fourth Proportional to 47,587,290.53, 71,380,357.67 and 13,043,663.21

Step by Step Solution

1. Step 1: Write the proportion equation
   47,587,290.53 : 71,380,357.67 = 13,043,663.21 : x
2. Step 2: Convert to fraction form
   47,587,290.53/71,380,357.67 = 13,043,663.21/x
3. Step 3: Cross multiply
   47,587,290.53x = 71,380,357.67 × 13,043,663.21
4. Step 4: Simplify right side
   47,587,290.53x = 931,061,344,834,700.25
5. Step 5: Solve for x
   x = 931,061,344,834,700.25/47,587,290.53
6. Step 6: Final answer
   x = 19,565,336.34