Finding the Fourth Proportional to 91,874.63, 126,800.73 and 56,085.38

Step by Step Solution

1. Step 1: Write the proportion equation
   91,874.63 : 126,800.73 = 56,085.38 : x
2. Step 2: Convert to fraction form
   91,874.63/126,800.73 = 56,085.38/x
3. Step 3: Cross multiply
   91,874.63x = 126,800.73 × 56,085.38
4. Step 4: Simplify right side
   91,874.63x = 7,111,666,492.32
5. Step 5: Solve for x
   x = 7,111,666,492.32/91,874.63
6. Step 6: Final answer
   x = 77,406.21