Finding the Fourth Proportional to 112,830.60, 155,700.78 and 65,099.34

Step by Step Solution

1. Step 1: Write the proportion equation
   112,830.60 : 155,700.78 = 65,099.34 : x
2. Step 2: Convert to fraction form
   112,830.60/155,700.78 = 65,099.34/x
3. Step 3: Cross multiply
   112,830.60x = 155,700.78 × 65,099.34
4. Step 4: Simplify right side
   112,830.60x = 10,136,018,015.49
5. Step 5: Solve for x
   x = 10,136,018,015.49/112,830.60
6. Step 6: Final answer
   x = 89,833.95