Finding the Fourth Proportional to 112,807.84, 155,658 and 69,830.56

Step by Step Solution

1. Step 1: Write the proportion equation
   112,807.84 : 155,658 = 69,830.56 : x
2. Step 2: Convert to fraction form
   112,807.84/155,658 = 69,830.56/x
3. Step 3: Cross multiply
   112,807.84x = 155,658 × 69,830.56
4. Step 4: Simplify right side
   112,807.84x = 10,869,685,308.48
5. Step 5: Solve for x
   x = 10,869,685,308.48/112,807.84
6. Step 6: Final answer
   x = 96,355.76