Finding the Fourth Proportional to 112,790.90, 155,641.11 and 65,035.02

Step by Step Solution

1. Step 1: Write the proportion equation
   112,790.90 : 155,641.11 = 65,035.02 : x
2. Step 2: Convert to fraction form
   112,790.90/155,641.11 = 65,035.02/x
3. Step 3: Cross multiply
   112,790.90x = 155,641.11 × 65,035.02
4. Step 4: Simplify right side
   112,790.90x = 10,122,123,041.45
5. Step 5: Solve for x
   x = 10,122,123,041.45/112,790.90
6. Step 6: Final answer
   x = 89,742.37