Finding the Fourth Proportional to 91,872.52, 126,762.42 and 52,128.52

Step by Step Solution

1. Step 1: Write the proportion equation
   91,872.52 : 126,762.42 = 52,128.52 : x
2. Step 2: Convert to fraction form
   91,872.52/126,762.42 = 52,128.52/x
3. Step 3: Cross multiply
   91,872.52x = 126,762.42 × 52,128.52
4. Step 4: Simplify right side
   91,872.52x = 6,607,937,346.22
5. Step 5: Solve for x
   x = 6,607,937,346.22/91,872.52
6. Step 6: Final answer
   x = 71,925.07