Finding the Fourth Proportional to 112,549.02, 155,365.47 and 70,128.51

Step by Step Solution

1. Step 1: Write the proportion equation
   112,549.02 : 155,365.47 = 70,128.51 : x
2. Step 2: Convert to fraction form
   112,549.02/155,365.47 = 70,128.51/x
3. Step 3: Cross multiply
   112,549.02x = 155,365.47 × 70,128.51
4. Step 4: Simplify right side
   112,549.02x = 10,895,548,916.55
5. Step 5: Solve for x
   x = 10,895,548,916.55/112,549.02
6. Step 6: Final answer
   x = 96,807.14