Finding the Fourth Proportional to 112,981.98, 155,915.94 and 62,680.98

Step by Step Solution

1. Step 1: Write the proportion equation
   112,981.98 : 155,915.94 = 62,680.98 : x
2. Step 2: Convert to fraction form
   112,981.98/155,915.94 = 62,680.98/x
3. Step 3: Cross multiply
   112,981.98x = 155,915.94 × 62,680.98
4. Step 4: Simplify right side
   112,981.98x = 9,772,963,916.82
5. Step 5: Solve for x
   x = 9,772,963,916.82/112,981.98
6. Step 6: Final answer
   x = 86,500.20