Finding the Fourth Proportional to 112,841.40, 155,737.71 and 65,085.42

Step by Step Solution

1. Step 1: Write the proportion equation
   112,841.40 : 155,737.71 = 65,085.42 : x
2. Step 2: Convert to fraction form
   112,841.40/155,737.71 = 65,085.42/x
3. Step 3: Cross multiply
   112,841.40x = 155,737.71 × 65,085.42
4. Step 4: Simplify right side
   112,841.40x = 10,136,254,265.19
5. Step 5: Solve for x
   x = 10,136,254,265.19/112,841.40
6. Step 6: Final answer
   x = 89,827.44