Finding the Fourth Proportional to 91,876.62, 126,803.50 and 56,087.38

Step by Step Solution

1. Step 1: Write the proportion equation
   91,876.62 : 126,803.50 = 56,087.38 : x
2. Step 2: Convert to fraction form
   91,876.62/126,803.50 = 56,087.38/x
3. Step 3: Cross multiply
   91,876.62x = 126,803.50 × 56,087.38
4. Step 4: Simplify right side
   91,876.62x = 7,112,076,089.83
5. Step 5: Solve for x
   x = 7,112,076,089.83/91,876.62
6. Step 6: Final answer
   x = 77,408.99