Finding the Fourth Proportional to 105,004.02, 157,491.28 and 30,130.55

Step by Step Solution

1. Step 1: Write the proportion equation
   105,004.02 : 157,491.28 = 30,130.55 : x
2. Step 2: Convert to fraction form
   105,004.02/157,491.28 = 30,130.55/x
3. Step 3: Cross multiply
   105,004.02x = 157,491.28 × 30,130.55
4. Step 4: Simplify right side
   105,004.02x = 4,745,298,886.60
5. Step 5: Solve for x
   x = 4,745,298,886.60/105,004.02
6. Step 6: Final answer
   x = 45,191.59