Finding the Fourth Proportional to 113,573.17, 156,729 and 62,590.69

Step by Step Solution

1. Step 1: Write the proportion equation
   113,573.17 : 156,729 = 62,590.69 : x
2. Step 2: Convert to fraction form
   113,573.17/156,729 = 62,590.69/x
3. Step 3: Cross multiply
   113,573.17x = 156,729 × 62,590.69
4. Step 4: Simplify right side
   113,573.17x = 9,809,776,253.01
5. Step 5: Solve for x
   x = 9,809,776,253.01/113,573.17
6. Step 6: Final answer
   x = 86,374.06