Finding the Fourth Proportional to 148,978.24, 223,397.04 and 54,142.36

Step by Step Solution

1. Step 1: Write the proportion equation
   148,978.24 : 223,397.04 = 54,142.36 : x
2. Step 2: Convert to fraction form
   148,978.24/223,397.04 = 54,142.36/x
3. Step 3: Cross multiply
   148,978.24x = 223,397.04 × 54,142.36
4. Step 4: Simplify right side
   148,978.24x = 12,095,242,962.61
5. Step 5: Solve for x
   x = 12,095,242,962.61/148,978.24
6. Step 6: Final answer
   x = 81,187.98