Finding the Fourth Proportional to 113,085.12, 156,051.37 and 62,780.88

Step by Step Solution

1. Step 1: Write the proportion equation
   113,085.12 : 156,051.37 = 62,780.88 : x
2. Step 2: Convert to fraction form
   113,085.12/156,051.37 = 62,780.88/x
3. Step 3: Cross multiply
   113,085.12x = 156,051.37 × 62,780.88
4. Step 4: Simplify right side
   113,085.12x = 9,797,042,333.81
5. Step 5: Solve for x
   x = 9,797,042,333.81/113,085.12
6. Step 6: Final answer
   x = 86,634.23