Finding the Fourth Proportional to 92,875.02, 128,200.23 and 55,149

Step by Step Solution

1. Step 1: Write the proportion equation
   92,875.02 : 128,200.23 = 55,149 : x
2. Step 2: Convert to fraction form
   92,875.02/128,200.23 = 55,149/x
3. Step 3: Cross multiply
   92,875.02x = 128,200.23 × 55,149
4. Step 4: Simplify right side
   92,875.02x = 7,070,114,484.27
5. Step 5: Solve for x
   x = 7,070,114,484.27/92,875.02
6. Step 6: Final answer
   x = 76,125.04