Finding the Fourth Proportional to 5,191,077.72, 7,162,646.88 and 2,898,885.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,191,077.72 : 7,162,646.88 = 2,898,885.72 : x
2. Step 2: Convert to fraction form
   5,191,077.72/7,162,646.88 = 2,898,885.72/x
3. Step 3: Cross multiply
   5,191,077.72x = 7,162,646.88 × 2,898,885.72
4. Step 4: Simplify right side
   5,191,077.72x = 20,763,694,757,834.55
5. Step 5: Solve for x
   x = 20,763,694,757,834.55/5,191,077.72
6. Step 6: Final answer
   x = 3,999,881.31