Finding the Fourth Proportional to 91,493,021.10, 137,345,819.85 and 55,142,456.70

Step by Step Solution

1. Step 1: Write the proportion equation
   91,493,021.10 : 137,345,819.85 = 55,142,456.70 : x
2. Step 2: Convert to fraction form
   91,493,021.10/137,345,819.85 = 55,142,456.70/x
3. Step 3: Cross multiply
   91,493,021.10x = 137,345,819.85 × 55,142,456.70
4. Step 4: Simplify right side
   91,493,021.10x = 7,573,585,924,004,626
5. Step 5: Solve for x
   x = 7,573,585,924,004,626/91,493,021.10
6. Step 6: Final answer
   x = 82,777,744.50