Finding the Fourth Proportional to 112,840.02, 155,611.43 and 67,510.80

Step by Step Solution

1. Step 1: Write the proportion equation
   112,840.02 : 155,611.43 = 67,510.80 : x
2. Step 2: Convert to fraction form
   112,840.02/155,611.43 = 67,510.80/x
3. Step 3: Cross multiply
   112,840.02x = 155,611.43 × 67,510.80
4. Step 4: Simplify right side
   112,840.02x = 10,505,452,044.06
5. Step 5: Solve for x
   x = 10,505,452,044.06/112,840.02
6. Step 6: Final answer
   x = 93,100.41