Finding the Fourth Proportional to 91,875.12, 126,801.43 and 56,085.88

Step by Step Solution

1. Step 1: Write the proportion equation
   91,875.12 : 126,801.43 = 56,085.88 : x
2. Step 2: Convert to fraction form
   91,875.12/126,801.43 = 56,085.88/x
3. Step 3: Cross multiply
   91,875.12x = 126,801.43 × 56,085.88
4. Step 4: Simplify right side
   91,875.12x = 7,111,769,786.81
5. Step 5: Solve for x
   x = 7,111,769,786.81/91,875.12
6. Step 6: Final answer
   x = 77,406.92