Finding the Fourth Proportional to 91,423.98, 126,191.90 and 53,192.52

Step by Step Solution

1. Step 1: Write the proportion equation
   91,423.98 : 126,191.90 = 53,192.52 : x
2. Step 2: Convert to fraction form
   91,423.98/126,191.90 = 53,192.52/x
3. Step 3: Cross multiply
   91,423.98x = 126,191.90 × 53,192.52
4. Step 4: Simplify right side
   91,423.98x = 6,712,465,164.59
5. Step 5: Solve for x
   x = 6,712,465,164.59/91,423.98
6. Step 6: Final answer
   x = 73,421.27