Finding the Fourth Proportional to 91,862.34, 126,783.90 and 56,073.15

Step by Step Solution

1. Step 1: Write the proportion equation
   91,862.34 : 126,783.90 = 56,073.15 : x
2. Step 2: Convert to fraction form
   91,862.34/126,783.90 = 56,073.15/x
3. Step 3: Cross multiply
   91,862.34x = 126,783.90 × 56,073.15
4. Step 4: Simplify right side
   91,862.34x = 7,109,172,642.29
5. Step 5: Solve for x
   x = 7,109,172,642.29/91,862.34
6. Step 6: Final answer
   x = 77,389.41