Finding the Fourth Proportional to 112,443.10, 155,071.03 and 93,292.55

Step by Step Solution

1. Step 1: Write the proportion equation
   112,443.10 : 155,071.03 = 93,292.55 : x
2. Step 2: Convert to fraction form
   112,443.10/155,071.03 = 93,292.55/x
3. Step 3: Cross multiply
   112,443.10x = 155,071.03 × 93,292.55
4. Step 4: Simplify right side
   112,443.10x = 14,466,971,807.47
5. Step 5: Solve for x
   x = 14,466,971,807.47/112,443.10
6. Step 6: Final answer
   x = 128,660.38