Finding the Fourth Proportional to 112,830.72, 155,706.48 and 62,529.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,830.72 : 155,706.48 = 62,529.72 : x
2. Step 2: Convert to fraction form
   112,830.72/155,706.48 = 62,529.72/x
3. Step 3: Cross multiply
   112,830.72x = 155,706.48 × 62,529.72
4. Step 4: Simplify right side
   112,830.72x = 9,736,282,596.59
5. Step 5: Solve for x
   x = 9,736,282,596.59/112,830.72
6. Step 6: Final answer
   x = 86,291.06